{"id":3526,"date":"2023-12-11T13:19:53","date_gmt":"2023-12-11T07:49:53","guid":{"rendered":"https:\/\/envisionmathanswerkey.com\/?p=3526"},"modified":"2023-12-12T12:33:52","modified_gmt":"2023-12-12T07:03:52","slug":"envision-math-common-core-grade-1-answer-key-topic-9","status":"publish","type":"post","link":"https:\/\/envisionmathanswerkey.com\/envision-math-common-core-grade-1-answer-key-topic-9\/","title":{"rendered":"enVision Math Common Core Grade 1 Answer Key Topic 9 Compare Two-Digit Numbers"},"content":{"rendered":"

Go through the\u00a0enVision Math Common Core Grade 1 Answer Key<\/a>\u00a0Topic 9 Compare Two-Digit Numbers<\/strong>\u00a0regularly and improve your accuracy in solving questions.<\/p>\n

enVision Math Common Core 1st Grade Answers Key Topic 9 Compare Two-Digit Numbers<\/h2>\n

\"Envision
\nenVision STEM Project: Light and Objects<\/p>\n

Find Out<\/strong> Talk to friends and relatives about light. Discuss how light changes when it shines on different kinds of objects.<\/p>\n

Journal: Make a Book<\/strong> Show what you found out. In your book, also:<\/p>\n

    \n
  • Draw pictures showing light shining on objects that are see-through and not see-through.<\/li>\n
  • Make up and solve number stories about shining light on different objects.<\/li>\n<\/ul>\n

    Review What You Know<\/strong><\/p>\n

    Vocabulary<\/strong><\/p>\n

    Question 1.
    \nCircle the group of cubes that has more.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Review-What-You-Know-Vocabulary-Question-1\"
    \nExplanation :
    \nThe orange cubes are 3
    \nThe Green cubes are 5
    \n3 < 5 . so Green cubes are circled .<\/p>\n

    Question 2.
    \nCircle the group of cubes that has less.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Review-What-You-Know-Vocabulary-Question-2\"
    \nExplanation :
    \nThe orange cubes are 3
    \nThe Green cubes are 5
    \n3 < 5 . so orange cubes are circled .<\/p>\n

    Question 3.
    \nHow many tens are in the number?
    \n50
    \n___ tens
    \nAnswer:
    \n50 = 5 tens
    \nExplanation :
    \ncounting<\/p>\n

    Number Lines<\/strong><\/p>\n

    Question 4.
    \nUse the number line to count by 10s. Write the missing numbers.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Review-What-You-Know-Number-Lines-Question-4\"
    \nExplanation :
    \nCount on Tens 10, 20, 30 and 40 .<\/p>\n

    \"Compare<\/p>\n

    Question 5.
    \nPat sees 5 bugs. Erin sees 6 bugs. How many bugs did they see in all?
    \nUse the number line to count.
    \n\"Envision
    \n___ bags
    \nAnswer:
    \nNumber of bugs seen by Pat = 5 bugs
    \nNumber of bugs seen by Erin = 6 bugs
    \nTotal Number of bugs = 5 + 6 = 11 bugs\u00a0 .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Review-What-You-Know-Number-Lines-Question-5\"<\/p>\n

    Hundred Chart<\/strong><\/p>\n

    Question 6.
    \nUse the part of the hundred chart to count.
    \n\"Envision
    \nAnswer:
    \n18, 19 , 20, 21, 22
    \nExplanation:
    \nCount by ones from 18 to 22 .<\/p>\n

    Pick a Project<\/strong><\/p>\n

    PROJECT 9A<\/strong><\/p>\n

    How hot can it get?
    \nProject: Create a Temperature Drawing
    \n\"Envision<\/p>\n

    Answer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Pick-a-Project-PROJECT-9A\"
    \nThe climate is too hot as the camel cannot take the weight of the person so, walking in the Sand .<\/p>\n

    PROJECT 9B<\/strong>
    \nWhere did they all come from?
    \nProject: Make a Shorebird Comparison Model
    \n\"Envision
    \nAnswer :
    \nInstructions used to make a Shoe bird
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Pick-a-Project-PROJECT-9B\"<\/p>\n

    PROJECT 9C<\/strong>
    \nHow was that made?
    \nProject: Make a Sponge Stamp Picture
    \n\"Envision<\/p>\n

    Answer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Pick-a-Project-PROJECT-9C\"
    \nExplanation :
    \n<\/strong>Take the sponge .
    \nCut the sponge into required shape like star, Moon , Heart and aetc into different shapes .
    \nThen later , Put the required shape sponge in water colors or ink .
    \nThen Press the sponge imprint on the paper . then required drawing can be made with the required shape .<\/p>\n

    \"Compare
    \n
    \nMath Modeling<\/strong><\/p>\n

    Digit Flip<\/strong><\/p>\n

    3-ACT MATH PREVIEW<\/strong>
    \nBefore watching the video, think: Have you ever played a card game? What were some of the rules? How did someone win the game?<\/p>\n

    Lesson 9.1 1 More, 1 Less; 10 More, 10 Less<\/h3>\n

    Solve & Share<\/strong><\/p>\n

    Sarah has 12 marbles. Chris has one more marble than Sarah. Lucia has 10 more marbles than Sarah. How many marbles does Chris have? How many marbles does Lucia have? Show how you know.
    \n\"Envision<\/p>\n

    \"Envision
    \nAnswer :
    \nNumber of Marbles with Sarah = 12
    \nNumber of Marbles with Chris = one more marble than Sarah = 12 + 1 = 13
    \nNumber of Marbles with Lucia = ten more marble than Sarah = 12 + 10 = 23
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Solve-&-Share\"<\/p>\n

    Visual Learning Bridge<\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nHow can you find 10 more than a number? Explain.
    \nAnswer :
    \nTo find\u00a010 more than a number, add 1 to the digit at the tens place.<\/p>\n

    Guided Practice<\/strong><\/p>\n

    Use place-value blocks to show each number and to help you complete each sentence.<\/p>\n

    Question 1.
    \n\"Envision
    \nAnswer:
    \n1 more than 45 is 46
    \n1 less than 45 is 44
    \n10 more than 45 is 55
    \n10 less than 45 is 35
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Guided-Practice-Question-1\"<\/p>\n

    Question 2.
    \n\"Envision
    \n1 more than 17 is ___
    \n1 less than 17 is ___
    \n10 more than 17 is ___
    \n10 less than 17 is ___
    \nAnswer:
    \n1 more than 17 is 18
    \n1 less than 17 is 16
    \n10 more than 17 is 27
    \n10 less than 17 is 7
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Guided-Practice-Question-2\"<\/p>\n

    Independent Practice<\/strong><\/p>\n

    Use place-value blocks to show each number and to help you
    \ncomplete each sentence.<\/p>\n

    Question 3.
    \n\"Envision
    \n1 more than 11 is ___
    \n1 less than 11 is ___
    \n10 more than 11 is ___
    \n10 less than 11 is ___
    \nAnswer:
    \n1 more than 11 is 12
    \n1 less than 11 is 10
    \n10 more than 11 is 21
    \n10 less than 11 is 1
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-3\"<\/p>\n

    Question 4.
    \n\"Envision
    \n1 more than 40 is ___
    \n1 less than 40 is ___
    \n10 more than 40 is __
    \n10 less than 40 is ___
    \nAnswer:
    \n1 more than 40 is 41
    \n1 less than 40 is 39
    \n10 more than 40 is 50
    \n10 less than 40 is 30
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-4\"<\/p>\n

    Question 5.
    \n\"Envision
    \n1 more than 81 is ___
    \n1 less than 81 is ___
    \n10 more than 81 is ___
    \n10 less than 81 is ___
    \nAnswer:
    \n1 more than 81 is 82
    \n1 less than 81 is 80
    \n10 more than 81 is 91
    \n10 less than 81 is 71
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-7\"<\/p>\n

    Question 6.
    \n\"Envision
    \n1 more than 19 is ___
    \n1 less than 19 is ____
    \n10 more than 19 is ___
    \n10 less than 19 is ___
    \nAnswer:
    \n1 more than 19 is 20
    \n1 less than 19 is 18
    \n10 more than 19 is 29
    \n10 less than 19 is 9
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-6\"<\/p>\n

    Question 7.
    \n\"Envision
    \n1 more than 65 is ___
    \n1 less than 65 is ___
    \n10 more than 65 is ___
    \n10 less than 65 is ___
    \nAnswer:
    \n1 more than 65 is 66
    \n1 less than 65 is 64
    \n10 more than 65 is 75
    \n10 less than 65 is 55
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-7\"<\/p>\n

    Question 8.
    \n\"Envision
    \n1 more than 43 is ___
    \n1 less than 43 is ___
    \n10 more than 43 is ___
    \n10 less than 43 is ___
    \nAnswer:
    \n1 more than 43 is 44
    \n1 less than 43 is 42
    \n10 more than 43 is 53
    \n10 less than 43 is 33\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-8\"<\/p>\n

    Question 9.
    \nHigher Order Thinking<\/strong> Circle the picture that shows 10 more than 24. Explain how you know.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Independent-Practice-Question-9\"<\/p>\n

    Explanation :
    \nTo find\u00a010 more than a number, add 1 to the digit at the tens place.
    \n24 + 10 = 34 .<\/p>\n

    Problem Solving<\/strong>
    \nSolve each problem below.<\/p>\n

    \"Compare
    Comparing numbers. Less than, greater than, equal to. Worksheet for kids. Number range up to 20. Preschool, elementary school. Vector illustration<\/figcaption><\/figure>\n

    Question 10.
    \nGeneralize<\/strong> Sheila wants to write instructions to tell her friend how to find 10 more than any number. What instructions should Sheila write?
    \nAnswer:
    \nInstructions are :
    \nTo\u00a0find 10 more than\u00a0a\u00a0number, add 1 to the digit at the tens place.
    \nWhen we add 10 the ones always stay the same.<\/p>\n

    Question 11.
    \nNumber Sense<\/strong> Fill in the missing numbers. Use place-value blocks to help you.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Problem-Solving-Question-11\"<\/p>\n

    Question 12.
    \nHigher Order Thinking<\/strong> Write and solve a riddle for a number greater than 40 and less than 60. Use \u201cI more than” and “I less than” or “10 more than” and “10 less than” as clues.
    \nClues: __________
    \n_______________
    \n_______________
    \nMy number is ____.
    \nAnswer:
    \nMy number is 44
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Problem-Solving-Question-12\"<\/p>\n

    Question 13.
    \nAssessment Practice<\/strong> Match each number with its description.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.1-1-More-1-Less-10-More-10-Less-Problem-Solving-Question-13\"<\/p>\n

    Lesson 9.2 Find Numbers on a Hundred Chart<\/h3>\n

    Solve & Share<\/strong><\/p>\n

    How can you use a hundred chart to help you find I more than 36? What about I less, 10 more, and 10 less than 36? Write the numbers.
    \n\"Envision<\/p>\n

    1 more than 36 is ___.
    \n10 more than 36 is ___
    \n1 less than 36 is ___
    \n10 less than 36 is ____
    \nAnswer :
    \n1 more than 36 is 37
    \n10 more than 36 is 46
    \n1 less than 36 is 35
    \n10 less than 36 is 26 .
    \nExplanation :
    \n1 more than 36 means the next number to its right as per hundred chart .
    \n10 more than 36 means the number below 36 as per hundred chart .
    \n1 less than 36 means before number to its left as per hundred chart .
    \n10 less than 36 means the Number above 36 as per hundred chart .<\/p>\n

    Visual Learning Bridge<\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nHow could you use a hundred chart to find what number is 10 more than 86? What number is that?
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 86 means the next number to its right as per hundred chart .
    \n10 more than 86 means the number below 86 as per hundred chart .
    \n1 less than 86 means before number to its left as per hundred chart .
    \n10 less than 86 means the Number above 86 as per hundred chart .<\/p>\n

    Guided Practice<\/strong>
    \nComplete the part of the hundred chart. Practice Use place-value blocks if needed.<\/p>\n

    Question 1.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 33 means the next number to its right as per hundred chart .
    \n10 more than 33 means the number below 33 as per hundred chart .
    \n1 less than 33 means before number to its left as per hundred chart .
    \n10 less than 33 means the Number above 33 as per hundred chart .<\/p>\n

    Question 2.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 46 means the next number to its right as per hundred chart .
    \n10 more than 46 means the number below 46 as per hundred chart .
    \n1 less than 46 means before number to its left as per hundred chart .
    \n10 less than 46 means the Number above 46 as per hundred chart .<\/p>\n

    Independent Practice<\/strong><\/p>\n

    Use a hundred chart to complete each sentence. Use place-value blocks if needed.<\/p>\n

    Question 3.
    \n1 more than 37 is ___.
    \n1 less than 37 is ____.
    \n10 more than 37 is ___.
    \n10 less than 37 is ____.
    \nAnswer:
    \n1 more than 37 is 38.
    \n1 less than 37 is\u00a0 36.
    \n10 more than 37 is 47.
    \n10 less than 37 is 27
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 37 means the next number to its right as per hundred chart .
    \n10 more than 37 means the number below 37 as per hundred chart .
    \n1 less than 37 means before number to its left as per hundred chart .
    \n10 less than 37 means the Number above 37 as per hundred chart .<\/p>\n

    Question 4.
    \n1 more than 22 is ___.
    \n1 less than 22 is ___.
    \n10 more than 22 is ___.
    \n10 less than 22 is ___.
    \nAnswer:
    \n1 more than 22 is 23.
    \n1 less than 22 is 21.
    \n10 more than 22 is 32.
    \n10 less than 22 is 12
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 22 means the next number to its right as per hundred chart .
    \n10 more than 22 means the number below 22 as per hundred chart .
    \n1 less than 22 means before number to its left as per hundred chart .
    \n10 less than 22 means the Number above 33 as per hundred chart .<\/p>\n

    Question 5.
    \n1 more than 54 is ___
    \n1 less than 54 is ____
    \n10 more than 54 is ___
    \n10 less than 54 is ___
    \nAnswer:
    \n1 more than 54 is 55
    \n1 less than 54 is 53
    \n10 more than 54 is 64
    \n10 less than 54 is 44
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 54 means the next number to its right as per hundred chart .
    \n10 more than 54 means the number below 54 as per hundred chart .
    \n1 less than 54 means before number to its left as per hundred chart .
    \n10 less than 54 means the Number above 33 as per hundred chart .<\/p>\n

    Question 6.
    \n1 more than 78 is ___.
    \n1 less than 78 is ___.
    \n10 more than 78 is ___.
    \n10 less than 78 is ___.
    \nAnswer:
    \n1 more than 78 is 79.
    \n1 less than 78 is . 77
    \n10 more than 78 is\u00a0 88.
    \n10 less than 78 is 68
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 78 means the next number to its right as per hundred chart .
    \n10 more than 78 means the number below 78 as per hundred chart .
    \n1 less than 78 means before number to its left as per hundred chart .
    \n10 less than 78 means the Number above 78 as per hundred chart .<\/p>\n

    Question 7.
    \n1 more than 82 is ___
    \n1 less than 82 is ____
    \n10 more than 82 is ___.
    \n10 less than 82 is ___.
    \nAnswer:
    \n1 more than 82 is 83
    \n1 less than 82 is 81
    \n10 more than 82 is 92.
    \n10 less than 82 is 72
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 82 means the next number to its right as per hundred chart .
    \n10 more than 82 means the number below 82 as per hundred chart .
    \n1 less than 82 means before number to its left as per hundred chart .
    \n10 less than 82 means the Number above 82 as per hundred chart .<\/p>\n

    Question 8.
    \n1 more than 16 is ___
    \n1 less than 16 is ___
    \n10 more than 16 is ___
    \n10 less than 16 is ___
    \nAnswer :
    \n1 more than 16 is 17
    \n1 less than 16 is 15
    \n10 more than 16 is 26
    \n10 less than 16 is 6
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \n1 more than 16 means the next number to its right as per hundred chart .
    \n10 more than 16 means the number below 16 as per hundred chart .
    \n1 less than 16 means before number to its left as per hundred chart .
    \n10 less than 16 means the Number above 16 as per hundred chart .<\/p>\n

    \"Envision
    \nAlgebra Use a hundred chart to find each student’s number.<\/p>\n

    Question 9.
    \nAlex’s number is 27. Kendra’s number is 1 less than Alex’s number. Devon’s number is 10 more than Kendra’s number. Finish the equations to find each friend’s number.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nExplanation :
    \nAlex Number = 27
    \nKendra’s number is 1 less than Alex’s number = 27 -1 = 26
    \nDevon’s number is 10 more than Kendra’s number =\u00a0 26 + 10 = 36<\/p>\n

    Problem Solving<\/strong><\/p>\n

    Solve the problems below.<\/p>\n

    Question 10.
    \nLook for Patterns<\/strong> Use the clues to find the missing number of marbles in each bag. Write the number. Ben has more than 54 marbles.
    \nAnna has 10 more marbles than Ben.
    \nTodd has a number that is 1 less than the number Anna has.
    \n\"Envision
    \nAnswer:
    \nBen has more than 54 marbles. so, take 55 marbles .
    \nNumber of Marbles with Anna =10 more marbles than Ben = 10 + 55 = 65 Marbles .
    \nNumber of Marbles with Todd = has a number that is 1 less than the number Anna has = 65 – 1 = 64 marbles
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find<\/p>\n

    \"Compare<\/p>\n

    Question 11.
    \nHigher Order Thinking<\/strong> Write a clue a partner could use to find how many marbles are in a bag. Then use the clue to tell how many marbles are in the bag.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find
    \nNumber of marbles in the bag = 10 less than 60 = 60 – 10 = 50 .<\/p>\n

    Question 12.
    \nAssessment Practice<\/strong>
    \n\"Envision
    \nWhich are true? Choose two.
    \n\"Envision 10 more than 23 is 32.
    \n\"Envision 1 more than 23 is 24.
    \n\"Envision 10 less than 23 is 13.
    \n\"Envision 1 less than 23 is 20.
    \nAnswer:
    \nOption
    \nExplanation :
    \n10 more than 23 = 10 + 23 = 33 Option 1 is wrong .
    \n1 more than 23 = 1 + 23 = 24 . Option 2 is right .
    \n10 less than 23 = 23 – 10 = 13 Option 3 is right .
    \n1 less than 23 = 23 – 1 = 22 Option 4 is right .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.2-Find<\/p>\n

    Lesson 9.3 Compare Numbers<\/span><\/p>\n

    Solve & Share<\/strong>
    \nHow can place-value blocks help you decide which number is larger? Circle the number that is larger.<\/p>\n

    \"Envision
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Solve-&-Share\"
    \n73 > 37
    \nExplanation :
    \nFirst Compare the Tens of 7 tens and 3 tens . 7 > 3 . so, 73 is greater than 37 .<\/p>\n

    Visual Learning Bridge<\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nWhich number is greater, 38 or 26? How do you know?
    \nAnswer :
    \n38 > 26
    \nExplanation :
    \nFirst Compare the Tens of 3 tens and 2 tens . 3 > 2 . so, 38 is greater than 26 .<\/p>\n

    Guided Practice<\/strong>
    \nWrite a number to match each model. Then circle is greater than or is less than.<\/p>\n

    Question 1.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Guided-Practice-Question-1\"
    \nExplanation :
    \nFirst Compare the Tens of 7 tens and 5tens . 7 > 5 .
    \nso, 78 is greater than 53 .<\/p>\n

    Question 2.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Guided-Practice-Question-2\"
    \nExplanation :
    \nFirst Compare the Tens, Both have 2 tens
    \nThen compare the ones , 4 < 9 . so, 24 < 29 .
    \n24 less than 29 .<\/p>\n

    Independent Practice<\/strong><\/p>\n

    Write a number to match each model. Then circle is greater than or is less than.<\/p>\n

    Question 3.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-3\"
    \nExplanation :
    \nFirst Compare the Tens of 4 tens and 2tens . 4 > 2 .
    \nso, 43 is greater than 27 .<\/p>\n

    Question 4.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-4\"<\/p>\n

    Explanation :
    \nFirst Compare the Tens, Both have 2 tens
    \nThen compare the ones , 8 ones and 2 ones 8 > 2 . so, 28 > 22 .
    \n28 is Greater than 22 .<\/p>\n

    Question 5.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-5\"
    \nExplanation :
    \nFirst Compare the Tens, Both have 3 tens
    \nThen compare the ones , 1 ones and 9 ones 1 < 9 . so, 31 < 39 .
    \n31 is less than 39<\/p>\n

    Question 6.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-6\"
    \nExplanation :
    \nFirst Compare the Tens of 6 tens and 5 tens . 6 > 5 .
    \nso, 60 is greater than 55 .<\/p>\n

    Question 7.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-7\"
    \nExplanation :
    \nFirst Compare the Tens, Both have 9 tens
    \nThen compare the ones , 3 ones and 7 ones 3 < 7 . so, 93 < 97 .
    \n93 is less than 97<\/p>\n

    Question 8.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Independent-Practice-Question-8\"
    \nExplanation :
    \nFirst Compare the Tens, of 2 tens and 7 tens . 2 > 7 .
    \nso, 79 is greater than 22.<\/p>\n

    Question 9.
    \nNumber Sense<\/strong> Laura counts 36 stars. Andy counts 7 more stars than Laura. Write the number of stars Andy counted. Then complete the sentence.
    \n___ stars
    \n___ is less than ___.
    \nAnswer :
    \nNumber of stars Laura counted = 36 stars
    \nNumber of stars Andy counted = counts 7 more stars than Laura = 36 + 7 = 43 stars .
    \n43 stars
    \n36 is less than 43.<\/p>\n

    Problem Solving<\/strong><\/p>\n

    Solve each problem below. Then complete each sentence.<\/p>\n

    Question 10.
    \nMake Sense<\/strong> Ming sees 28 girls at the park. She sees 32 boys at the park. Does Ming see more girls or more boys?
    \nShe sees more ___
    \n___ is less than
    \nAnswer:
    \nNumber of girls = 28 .
    \nNumber of boys = 32 .
    \nShe sees more boys
    \n28 is less than 32 .<\/p>\n

    Question 11.<\/span><\/p>\n

    Make Sense<\/strong> Julio counts 81 pennies. He counts 76 dimes.
    \nDoes Julio count more pennies or more dimes?
    \nHe counts more ___
    \n___ is greater than ___
    \nAnswer:
    \nNumber of pennies = 81
    \nNumber of Dimes = 76
    \nhe counts more Pennies
    \n81 is greater than 76 .<\/p>\n

    Question 12.
    \nHigher Order Thinking<\/strong> Choose
    \n2 numbers between 40 and 99. Write a sentence that compares the numbers.
    \nMy numbers are ___ and ___
    \n\"Envision
    \nAnswer:
    \nMy numbers are 60 and 55
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Problem-Solving-Question-12\"
    \nExplanation :
    \nFirst Compare the Tens of 6 tens and 5 tens . 6 > 5 .
    \nso, 60 is greater than 55 .<\/p>\n

    Question 13.
    \nAssessment Practice<\/strong> Ann has 46 shells. Ben has 43 shells.
    \nCompare the numbers. Circle is greater than or is less than.
    \n\"Envision
    \nAnswer:
    \nNumber of shells Ann have = 46
    \nNumber of shells Ben have = 43
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.3-Compare-Numbers-Problem-Solving-Question-13\"
    \nExplanation :
    \nFirst Compare the Tens, Both have 4 tens
    \nThen compare the ones , 6 ones and 3 ones 6 > 3 . so, 46 > 43 .
    \n46 is Greater than 43 .<\/p>\n

    Lesson 9.4 Compare Numbers with Symbols (>, <, =)<\/h1>\n

    Solve & Share <\/strong><\/p>\n

    Write a two-digit number inside the TV. Write a different two-digit number inside the radio. Then write the numbers and circle the words to complete the sentence below. Explain how you know.
    \n\"Envision
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Solve-&-Share-Question-10\"<\/p>\n

    Visual Learning Bridge <\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nHow do you know that 48 is greater than 40?
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Convince-Me\"<\/p>\n

    Guided Practice<\/strong>
    \nComplete each sentence. Write greater than, less than, or equal to. Then write >, <, or =.<\/p>\n

    Question 1.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Guided-Practice-Question-1\"
    \nExplanation :
    \nNotice the blocks of 28 and 41. compare the tens first .
    \n41 have more tens than 28.
    \nso, 28 < 41.<\/p>\n

    Question 2.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Guided-Practice-Question-2\"
    \nExplanation :
    \nNotice the blocks of 53 and 35. compare the tens first .
    \n53 have more tens than 35.
    \nso, 53 > 35.<\/p>\n

    Independent Practice<\/strong><\/p>\n

    Complete each sentence. Write greater than, less than, or equal to. Then write >, <, or =.<\/p>\n

    Question 3.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-3\"
    \nExplanation :
    \nThe Tens are same
    \nThe Ones are same .<\/p>\n

    Question 4.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-4\"
    \nExplanation :
    \nNotice the blocks of 62 and 37. compare the tens first .
    \n62 have more tens than 37.
    \nso, 62 > 37.<\/p>\n

    Question 5.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-5\"
    \nExplanation :
    \nNotice the blocks of 86 and 89. compare the ones when they have same tens .
    \n86 have less ones than 89.
    \nso, 86 < 89 .<\/p>\n

    Question 6.
    \n34 \"Envision 43
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-6\"
    \nExplanation :
    \nNotice the blocks of 34 and 43. compare the tens first .
    \n43 have more tens than 34.
    \nso, 34 < 43.<\/p>\n

    Question 7.
    \n95 \"Envision 90
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-7\"
    \nExplanation :
    \nNotice the blocks of 95 and 90. compare the ones when they have same tens .
    \n90 have no ones than 95.
    \nso, 95 > 90 .<\/p>\n

    Question 8.
    \n74 \"Envision 74
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-8\"<\/p>\n

    Explanation :
    \nThe Tens are same
    \nThe Ones are same .<\/p>\n

    Higher Order Thinking<\/strong> Choose 2 number cards for each problem. Compare the numbers. Write >, <, or = in the circle. Use each number card one time.
    \n\"Envision<\/p>\n

    Question 9.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-9\"
    \nExplanation :
    \nThe Tens are same
    \nThe Ones are same .<\/p>\n

    Question 10.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-10\"
    \nExplanation :
    \nNotice the blocks of 99 and 72. compare the tens first .
    \n99 have more tens than 72.
    \nso, 99 > 72.<\/p>\n

    Question 11.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Independent-Practice-Question-11\"
    \nExplanation :
    \nNotice the blocks of 42 and 56. compare the tens first .
    \n42 have less tens than 56.
    \nso, 42 < 56.<\/p>\n

    Problem Solving<\/strong>
    \nSolve each problem below.<\/p>\n

    Question 12.
    \nBe Precise<\/strong> Mary has 21 red ribbons. She has 12 yellow ribbons. Does Mary have more red ribbons or yellow ribbons? Write >, <, or = to compare the numbers.
    \n21 \"Envision 12
    \nShe has more ___ ribbons.
    \nAnswer:
    \nNumber of Red Ribbons\u00a0 = 21
    \nNumber of Yellow Ribbons = 12
    \n21 > 12 .
    \nShe has more Red Ribbons .
    \nExplanation :
    \nCompare the tens first .
    \n21 have more tens than 12.
    \nso, 21 > 12.<\/p>\n

    Question 13.
    \nVocabulary<\/strong> Write a sentence using greater than (>).
    \n\"Envision
    \nAnswer:
    \n75\u00a0 \u00a0> 74
    \nExplanation :
    \nNotice 75 and 74.
    \nCompare the Ones when we have same tens .
    \n75 have more ones than 74.
    \nso, 75 > 74.<\/p>\n

    Question 14.
    \nHigher Order Thinking<\/strong> Write a story that compares 2 numbers. Then complete the sentence to compare the numbers.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Problem-Solving-Question-14\"
    \nExplanation :
    \nNumber of pink balls = 20
    \nNumber of blue balls = 25 .
    \n20 < 25 .
    \nShe has more blue balls .<\/p>\n

    Question 15.
    \nAssessment Practice<\/strong> Jake has 92 stickers. Brian has 97 stickers.
    \nWhich sentences show the correct way to compare Jake’s stickers and Brian’s stickers? Choose two that apply.
    \n\"Envision 92 = 97
    \n\"Envision 97 > 92
    \n\"Envision 92 > 97
    \n\"Envision 92 < 97
    \nAnswer:
    \nNumber of stickers Jake have = 92
    \nNumber of stickers Brian have = 97 .
    \n92 is less than 97
    \n97 is greater than 92 .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.4-Compare-Numbers-with-Symbols-Problem-Solving-Question-15\"<\/p>\n

    Lesson 9.5 Compare Numbers on a Number Line<\/h3>\n

    Solve & Share<\/strong><\/p>\n

    Nick skipped rope 24 times. Look at the number line below. Find a number that is greater than 24 and a number that is less than 24. Show your numbers on the number line and explain how you know.<\/p>\n

    \"Envision
    \n____ is greater than 24.
    \n____ is less than 24.
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Solve-&-Share\"
    \n25, 26, 27, 28, 29 and so on are greater than 24.
    \n23, 22, 21 and so on are lesser than 24.
    \nExplanation :
    \nThe numbers to the right of 24 on a number line are greater than 24 .
    \nThe numbers to the left of 24 on a number line are lesser than 24 .<\/p>\n

    Visual Learning Bridge<\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nUsing a number line, how do you know if 70 is greater than or less than 53?
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Convince-Me\"
    \nExplanation :
    \n53 is left of 70 on a number line so, 70 is greater than 53 .<\/p>\n

    Guided Practice<\/strong><\/p>\n

    Write a number to make each correct. Use the number line to help if needed.
    \n\"Envision<\/p>\n

    Question 1.
    \n31<\/u> < 32
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-1\"
    \nExplanation :
    \nThe numbers to the left of 32 on a number line are lesser than 32 .
    \n31 is left of 32 .
    \nso, 31 < 32 .<\/p>\n

    Question 2.
    \n40 > ___
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-2\"
    \nExplanation :
    \nAny number to the left of 40 on a number line is lesser than 40 .
    \n38 is left of 40 so, 40 > 38 .<\/p>\n

    Question 3.
    \n35 > __
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-3\"
    \nExplanation :
    \nAny number to the left of 35 on a number line is lesser than 35 .
    \n30 is left of 35 so, 35 > 30 .<\/p>\n

    Question 4.
    \n___ < 37
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-4\"
    \nExplanation :
    \nThe numbers to the left of 37 on a number line are lesser than 37.
    \n31 is left of 37 .
    \nso, 31 < 37 .<\/p>\n

    Question 5.
    \n___ < 40
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-5\"
    \nExplanation :
    \nThe numbers to the left of 40 on a number line are lesser than 40 .
    \n38 is left of 40 .
    \nso, 38 < 40 .<\/p>\n

    Question 6.
    \n50 > __
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Guided-Practice-Question-6\"
    \nExplanation :
    \nAny number to the left of 50 on a number line is lesser than 40 .
    \n40 is left of 50 so, 40 < 50 .<\/p>\n

    Independent Practice<\/strong>
    \nWrite the number or symbol > or < to make each correct. Draw a number line to help if needed.<\/p>\n

    Question 7.
    \n___ < 26
    \nAnswer:
    \n22 < 26 .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Independent
    \nExplanation :
    \nAny number to the left of 26 on a number line is lesser than 26 .
    \n22 is left of 26 so, 22 < 26 .<\/p>\n

    Question 8.
    \n75 > __
    \nAnswer:
    \n75 > 70 .
    \nExplanation :
    \nAny number to the left of 75 on a number line is lesser than 75 .
    \n70 is left of 75 so, 75 > 70 .<\/p>\n

    Question 9.
    \n33 > ___
    \nAnswer:
    \n33 > 30
    \nExplanation :
    \nAny number to the left of 33 on a number line is lesser than 33 .
    \n30 is left of 33 so, 33 > 30 .<\/p>\n

    Question 10.
    \n___ < 95
    \nAnswer:
    \n80 < 95
    \nExplanation :
    \nAny number to the Left of 95 on a number line is lesser than 95 .
    \n80 is left of 95 so, 80 < 95 .<\/p>\n

    Question 11.
    \n__ > 50
    \nAnswer:
    \n52 > 50
    \nExplanation :
    \nAny number to the Right of 50 on a number line is Greater than 50 .
    \n52 is Right of 50 so, 52 > 50 .<\/p>\n

    Question 12.
    \n90 < ___
    \nAnswer:
    \n90 < 100
    \nExplanation :
    \nAny number to the Right of 90 on a number line is Greater than 90 .
    \n100 is Right of 90 so, 90 < 100 .<\/p>\n

    Question 13.
    \n39 \"Envision 48
    \nAnswer:
    \n39 < 48
    \n39 is less than 48
    \nExplanation :
    \nCheck the numbers.
    \nCompare the tens First .
    \nin 39 we have 3 tens
    \nin 48 we have 4 tens.
    \n48 have more tens than 39
    \nso, 39 is lesser than 48 .<\/p>\n

    Question 14.
    \n47 \"Envision 35
    \nAnswer:
    \n47 > 35 .
    \nExplanation :
    \nCheck the numbers.
    \nCompare the tens First .
    \nin 47 we have 4 tens
    \nin 35 we have 3 tens.
    \n47 have more tens than 35
    \nso, 47 is greater than 35 .<\/p>\n

    Question 15.
    \n29 \"Envision 72
    \nAnswer:
    \n29 < 72 .
    \nExplanation :
    \nCheck the numbers.
    \nCompare the tens First .
    \nin 29 we have 2 tens
    \nin 72 we have 7 tens.
    \n72 have more tens than 29
    \nso, 29 is lesser than 72 .<\/p>\n

    Higher Order Thinking<\/strong> Write numbers to make each correct. Place the numbers on the number lines.<\/p>\n

    Question 16.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Independent
    \nExplanation :
    \nNumbers to the left of 70 are lesser than numbers .
    \nNumber to the Right of 70 are greater numbers .<\/p>\n

    Question 17.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Independent
    \nExplanation :
    \nNumbers to the left of 64 are lesser than numbers .
    \nNumber to the Right of 64 are greater numbers .<\/p>\n

    Problem Solving<\/strong><\/p>\n

    Solve each problem below. Solving Model You can use a number line to help you.<\/p>\n

    Question 18.
    \n3 friends wrote a number on paper. Paul wrote a number that is greater than Nicole’s number and less than Tina’s number. Nicole’s number is 42. Tina’s number is 44.
    \nWhat is Paul’s number? __
    \nAnswer:
    \nTina’s Number = 44
    \nNicole’s Number = 42 .
    \nPaul’s Number = number that is greater than Nicole’s number and less than Tina’s number = 42 < 43 < 44.
    \nTherefore, Paul’s Number = 43 .<\/p>\n

    Question 19.
    \nenVision\u00ae STEM<\/strong> Jay covers some windows with cardboard to block the sunlight from shining through. The number of windows he covers is less than 28 and more than 26. How many windows does Jay cover?
    \n___ windows
    \nAnswer:
    \nNumber of Windows Covered = Less than 28 and more than 26. = 28 > 27 > 26 .
    \nTherefore, Number of Windows Covered = 27 Windows .<\/p>\n

    Question 20.
    \nHigher Order Thinking<\/strong> How can you find a number that is greater than 90? Explain.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Independent
    \nNumbers greater than 90 are on the Right side of the number line of number 90 .
    \n90 < 91< 92< 93< 94 < 95 < 96\u00a0 are numbers greater than 90 .<\/p>\n

    Question 21.
    \nAssessment Practice<\/strong> The number on Taylor’s mailbox is less than (<) 70. Which numbers could be on Taylor’s mailbox? Choose two.
    \n\"Envision
    \n\"Envision 60
    \n\"Envision 69
    \n\"Envision 70
    \n\"Envision 71
    \nAnswer :
    \nThe number on Taylor’s mailbox is less than (<) 70 are 60 and 69 .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Lesson-9.5-Compare-Numbers-on-a-Number-Line-Independent<\/p>\n

    Lesson 9.6 Make Sense and Persevere<\/h3>\n

    I am thinking of a secret number. The number is greater than 20 and less than 30. The number is inside a shape with 4 sides. What is the secret number ? What strategy did you use to find it?
    \n\"Envision
    \nThe secret number is ____.
    \nAnswer :
    \nThe secret number is 27 .
    \nExplanation :
    \nThe numbers which are greater than 20 and less than 30 as per above figure .
    \n22 , 25 , and 27 .
    \n22 is written in a Triangle with three sides.
    \n25 is written in a circle with no sides.
    \n27 is written in a Rhombus with 4 sides .
    \nin 4 sides we have 27.
    \nso, the secret number = 27 .<\/p>\n

    Thinking Habits<\/strong>
    \nWhat am I asked to find? What is a good plan for solving this problem?<\/p>\n

    Visual Learning Bridge<\/strong>
    \n\"Envision<\/p>\n

    Convince Me!<\/strong>
    \nHow does making a list help you make sense of a problem?
    \nAnswer :
    \nMaking a list will help you understand the problem clearly with step by step and helps to know the answer clearly without any confusions .<\/p>\n

    Guided Practice<\/strong>
    \nUse the numbers above to solve each riddle. Write the secret number. Explain your work.<\/p>\n

    Question 1.
    \nI am a green number. I am greater than 45 and less than 60. Which number am I?
    \n57
    \n<\/u>Answer :
    \nGreen Numbers : 22, 45 and 57 .
    \nNumber greater than 45 and less than 60 is 57.
    \nI am number 57 .<\/p>\n

    Question 2.
    \nI am a blue number. You say my name when you count by 10s. Which number am I?
    \n___
    \nAnswer:
    \nBlue Number\u00a0 :\u00a0 50, 24, 41.
    \nCount by tens means it is 10 multiple .
    \nso, the number is 50 .<\/p>\n

    Independent Practice<\/strong><\/p>\n

    Make sense of each riddle to find the secret number. Show and explain your work.
    \n\"Envision<\/p>\n

    Question 3.
    \nThe number of pages in my book is less than 96 and greater than 90.
    \nWho could I be?
    \nI have 3 letters in my name. Who am I?
    \n___ ___
    \nAnswer:
    \nJay
    \nExplanation :
    \nBooks with pages less than 96 and greater than 90 are
    \nCarla – 92 pages
    \nJay – 95 pages
    \nI have 3 letters in my name. that is Jay .<\/p>\n

    Question 4.
    \nThe number of pages in my book is greater than 92.
    \nWho could I be?
    \n__ ___ ___
    \nI have the greatest number of pages. Who am I?
    \n___
    \nAnswer:
    \nmy book is greater than 92.
    \nCarla – 92 pages
    \nMolly – 95 pages
    \nLisa – 96 pages\u00a0<\/span>
    \nPeg – 98 Pages .<\/span>
    \nGreatest number of pages\u00a0 – peg have 98 that is greatest <\/span>number\u00a0of pages .<\/span><\/p>\n

    Question 5.<\/span><\/p>\n

    The number of pages in my book is less than 65.
    \nWho could I be?
    \n__ __ ___
    \nI have 10 more than 54 pages. Who am I?
    \n___
    \nAnswer:
    \nThe number of pages in my book is less than 65 are :
    \nGreg – 55 pages
    \nYao- 96 pages\u00a0<\/span>
    \nKatie – 98 Pages .
    \nI could be – Greg – 55 pages .
    \nI have 10 more than 54 pages = 54 + 10 = 64 pages – Katie .
    \n<\/span><\/p>\n

    Problem Solving<\/strong><\/p>\n

    Performance Task<\/strong><\/p>\n

    Missing Numbers<\/strong> Akayla has to find a secret number missing from the chart. She gets some clues to help her.
    \n\"Envision
    \nAkayla’s Clues:
    \n– The secret number is greater than 75.
    \n– The number does NOT have an 8 in the ones place.
    \nWhat is the secret number?<\/p>\n

    Question 6.
    \nMake Sense<\/strong> What is your plan for solving this problem? Explain.
    \n\"Envision
    \nAnswer:
    \nGreater than 75 .
    \nMissing Numbers – 78, 83 and 88 .
    \nwhich doesn’t have 8 in ones place = 83 as 78 and 88 have 8 in one’s place .
    \nTherefore, The missing number is 83 .
    \nExplanation :
    \nWrite the missing numbers for given Condition one by one and sort them .<\/p>\n

    Question 7.
    \nExplain<\/strong> What is the secret number? How do you know your answer is correct?
    \nSecret number: ___
    \nAnswer:
    \nThe Secret number is 83 .
    \nAs per the conditions given the secret number satisfices them .<\/p>\n

    Topic 9 Fluency Practice Activity<\/h3>\n

    Find a Match<\/strong><\/p>\n

    Find a partner. Point to a clue. Read the clue. Look below the clues to find a match. Write the clue letter in the box next to the match. Find a match for every clue.
    \n\"Envision
    \nClues
    \nA 6+ 2
    \nB 5 + 5
    \nC 9 – 3
    \nD 5 – 1
    \nE 8 – 6
    \nF 5 + 4
    \nG 7 – 2
    \nH 1 + 2<\/p>\n

    \"Envision 10 – 0
    \n\"Envision 2 + 2
    \n\"Envision 10 – 1
    \n\"Envision 9 – 7
    \n\"Envision 2 + 3
    \n\"Envision 7 – 4
    \n\"Envision 4 + 4
    \n\"Envision 3 + 3
    \nAnswer :
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Fluency-Practice-Activity-Find-a-Match\"
    \nExplanation :
    \nA= 6+ 2= 4+4 =8
    \nB= 5 + 5=10- 0 =10
    \nC= 9 – 3= 3 +3 = 6
    \nD=5 – 1=2 + 2 =4
    \nE= 8 – 6=9 – 7 = 2
    \nF =5 + 4=10 – 1= 9
    \nG= 7 – 2=2 + 3 =5
    \nH= 1 + 2=7 – 4 = 3<\/p>\n

    Topic 9 Vocabulary Review<\/h3>\n

    Understand Vocabulary<\/strong><\/p>\n

    Question 1.
    \nCompare the numbers. Circle the number that is more.
    \n26 29
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Vocabulary-Review\"
    \nExplanation :
    \nCheck the numbers
    \nCompare Ones when they have same Tens .
    \nwe have more ones in 29 than 26 .
    \nSo, 29 is more than 26 .<\/p>\n

    Question 2.
    \nCompare the numbers. Circle the number that is less.
    \n58 68
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Vocabulary-Review-Question-2\"
    \nExplanation :
    \nCheck the numbers
    \nCompare Tens they have5 tens in 58 and 6 tens in 68 .
    \nwe have more tens in 68 than 58 .
    \nSo, 68 is more than 58 .<\/p>\n

    Question 3.
    \nChoose a term from the Word List. Fill in the blank to make it true.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Vocabulary-Review-Question-3\"<\/p>\n

    Use Vocabulary in Writing<\/strong><\/p>\n

    Question 4.
    \nWrite a problem using the terms from the Word List. Use place-value blocks to help solve your problem.
    \n\"Envision
    \nAnswer:<\/p>\n

    Topic 9 Reteaching<\/h3>\n

    Set A<\/strong><\/p>\n

    You can use blocks to show 1 more, 1 less, 10 more, and 10 less than a number.
    \n\"Envision<\/p>\n

    Use blocks. Write the numbers to complete each sentence.<\/p>\n

    Question 1.
    \n\"Envision<\/p>\n

    1 more than 87 is ___
    \n1 less than 87 is ___
    \n10 more than 87 is ___
    \n10 less than 87 is ___
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Reteaching-Set-A-
    \n1 more than 87 is 88
    \n1 less than 87 is 86
    \n10 more than 87 is 97
    \n10 less than 87 is 77<\/p>\n

    Set B<\/strong><\/p>\n

    You can use a hundred chart to find the number that is I more than, I less than, 10 more than, and 10 less than.
    \n\"Envision<\/p>\n

    Write the number that is I more, I less, 10 more, or 10 less. You can use a hundred chart to help you.
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Reteaching-Set-B\"<\/p>\n

    Question 2.
    \n1 less than 37
    \n___, 37
    \nAnswer :
    \n1 less than 37 is 36 .
    \n36, 37
    \nExplanation :
    \n10 more than 37 means the number below 37 as per hundred chart .<\/p>\n

    Question 3.
    \n1 more than 37
    \n37, ___
    \nAnswer:
    \n1 more than 37 is 38
    \n37, 38
    \nExplanation :
    \n1 more than 37 means the next number to its right as per hundred chart .<\/p>\n

    Question 4.
    \n10 less than 55
    \n__, 55
    \nAnswer:
    \n10 less than 55 is 45 .
    \n45, 55
    \nExplanation :
    \n10 less than 55 means the Number above 45 as per hundred chart .<\/p>\n

    Question 5.
    \n10 more than 55
    \n55, ___
    \nAnswer:
    \n10 more than 55 is 65 .
    \n55, 65 .
    \nExplanation :
    \n10 more than 55 means the number below 65 as per hundred chart .<\/p>\n

    Set C<\/strong><\/p>\n

    You can compare numbers using >, <, or =
    \n> means greater than. 33 is greater than 24.
    \n\"Envision
    \n< means less than. 24 is less than 33.
    \n\"Envision
    \nAnswer:<\/p>\n

    Write greater than, less than, or equal to. Then write >, <, or =<\/p>\n

    Question 6.
    \n46 is ____ 26.
    \n46 \"Envision 26
    \nAnswer :
    \n46 is greater than 26.
    \n46 >\u00a026
    \nExplanation :
    \nCheck the numbers .
    \nCompare the tens place vales first
    \nwe have more tens in 46 than 26 .
    \nso, 46 > 26 .<\/p>\n

    Question 7.
    \n25 is ___ 52.
    \n24 \"Envision 33
    \nAnswer:
    \n25 is less than\u00a0 52.
    \n24 <\u00a033
    \nExplanation :
    \ncheck the numbers .
    \nCompare the tens place vales first
    \nwe have more tens in 33 than 24 .
    \nso, 24 < 33 .<\/p>\n

    Set D<\/strong><\/p>\n

    Thinking Habits <\/strong>
    \nMake Sense and Persevere<\/strong><\/p>\n

    What am I asked to find?
    \nWhat is a good plan for solving this problem?
    \nHow can I check that my solution makes sense?
    \n\"Envision<\/p>\n

    Look at the numbers below. Find the secret number.<\/p>\n

    \"Envision<\/p>\n

    Question 8.
    \nI am a number greater than 65. What numbers could I be? ___
    \nAnswer:
    \nNumbers below 65 are 42, 7, 13, 63 and 50 .
    \nTherefore numbers could be 42, 7, 13, 63 and 50 .<\/p>\n

    Question 9.
    \nI am 10 less than 83. What number am I? __
    \nAnswer:
    \n10 less than 83 = 83 – 10 = 73 .
    \ni am 73 .<\/p>\n

    Topic 9 Assessment Practice<\/h3>\n

    Question 1.
    \nTrina’s house number is 54. Frank’s house number is greater than Trina’s house number. Which is Frank’s house number? How do you know?
    \nA. 52; because 52 > 50
    \nB. 53; because 53 < 54
    \nC. 54; because 54 > 50
    \nD. 55; because 55 > 54
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Assessment-Practice-
    \nD. 55; because 55 > 54
    \nNumbers Right of 54 of a number line are the greater numbers .
    \nExplanation :
    \nHouse Number of Trina’s = 54 .
    \nHouse Number of Frank’s = greater than 54 that means more than 54
    \nAs per options Only Option D is having house number as 55 which is greater than 54 .<\/p>\n

    Question 2.
    \nChoose two ways to compare the place-value blocks. Explain.
    \n\"Envision
    \n\"Envision 82 < 87; 82 has fewer ones than 87.
    \n\"Envision 87 = 82; 87 and 82 have the same number of tens.
    \n\"Envision 87 < 82; 82 has more ones than 87.
    \n\"Envision 87 > 82; 87 has more ones than 82.
    \n\"Envision 82 > 87; 82 has more ones than 87.
    \nAnswer:<\/p>\n

    \"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Assessment-Practice-<\/p>\n

    Question 3.
    \nFind 10 more than 37 without having to count. Explain how you know.
    \nA. 36; 36 has one fewer one than 37.
    \nB. 47; 47 has one more ten than 37.
    \nC. 38; 38 has one more one than 37.
    \nD. 27; 27 has one fewer ten than 37.
    \nAnswer:
    \nOption B. 47; 47 has one more ten than 37.
    \nExplanation :
    \n10 more than 37 means add 1 to the tens place of value 37 that gives 10 more than 37 = 47 .<\/p>\n

    Question 4.
    \nUse the clues to find the secret number from the choices on the right.
    \n\"Envision
    \nI am less than 48. What numbers could I be? ___
    \nI have a 0 in the ones place. What number am I? __
    \nAnswer:
    \nI am less than 48 means 42 , 37 and 40 .
    \nI have a 0 in the ones place is 40 as 42 and 37 have 2 and 7 in ones place .
    \nThe Number is 40 .<\/p>\n

    Question 5.
    \nWrite the number to complete the part of the hundred chart. Explain how you know.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Assessment-Practice-
    \nExplanation :
    \n1 more than 43 means the next number to its right as per hundred chart .
    \n10 more than 43 means the number below 43 as per hundred chart .
    \n1 less than 43 means before number to its left as per hundred chart .
    \n10 less than 43 means the Number above 43 as per hundred chart .<\/p>\n

    Question 6.
    \nWhat number is 10 more than 74?
    \nWhat number is 10 less than 74?
    \n10 more than 74 is ___
    \n10 less than 74 is ___
    \nAnswer:
    \n10 more than 74 is 84
    \n10 less than 74 is 64
    \nExplanation :
    \n10 more than 74 means add 1tens to the tens place of value of 74 that gives 84 .
    \n10 less than 74 means subtract 1 tens from the tens place value of 74 that gives 64 .<\/p>\n

    Question 7.
    \nLook at the place-value blocks. Write the numbers to make the sentences true. Explain how you know which number is greater.
    \n\"Envision
    \n___ is greater than ___.
    \n___ is less than ___.
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Assessment-Practice-
    \n27 is greater than 22 .
    \n22 is less than 27 .
    \nExplanation :
    \nCheck the numbers 27 and 22.
    \nCompare the ones value if both have same tens .
    \n27 have more ones than 22 .
    \nso, 27 is greater than 22
    \n22 is less than 27 .<\/p>\n

    Topic 9 Performance Task<\/h3>\n

    Mailbox Mysteries<\/strong>
    \nMeg sees these mailboxes in her neighborhood. Each mailbox has a different number.
    \n\"Envision<\/p>\n

    Question 1.
    \nWrite the mailbox number for each clue. You can use the hundred chart to help you.
    \n\"Envision
    \n1 more than 59 __
    \n1 less than 26 ___
    \n10 more than 7 ___
    \n10 less than 83 ___
    \nAnswer:
    \n1 more than 59 is 60
    \n1 less than 26 is 25
    \n10 more than 7 is 17
    \n10 less than 83 is 73
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Performance-Task-Mailbox-Mysteries-<\/p>\n

    Question 2.
    \nUse these clues to figure out each student’s mailbox number.
    \nShow your work on the hundred chart.
    \n\"Envision
    \nAnswer :
    \nBill’s Number = 34
    \nSue’s Number = 1 more than Bill’s Number = 34 + 1 = 35
    \nLarry’s Number = 10 less than Sue’s Number = 35 – 10 = 25 .
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Performance-Task-Mailbox-Mysteries-<\/p>\n

    Question 3.
    \nFill in the missing numbers. You can use the number lines to help you.
    \nWrite a mailbox number that is greater than 50.
    \n\"Envision
    \nWrite a mailbox number that is less than 30.
    \n\"Envision
    \nAnswer:
    \n\"Envision-Math-Common-Core-1st-Grade-Answers-Key-Topic-9-Compare-Two-Digit-Numbers-Topic-9-Performance-Task-Mailbox-Mysteries-<\/p>\n

    Question 4.
    \nMeg describes her mailbox number.
    \nShe uses these clues.
    \nWhat is her mailbox number? ___
    \nExplain how you know.<\/p>\n

    Clues<\/strong><\/p>\n

      \n
    • The number is greater than 40.<\/li>\n
    • The number is NOT on a red mailbox.<\/li>\n
    • The number has more ones than tens.<\/li>\n<\/ul>\n

      Answer:
      \n\"Envision<\/p>\n

        \n
      • The numbers greater than 40 are :
        \n60 – Green Mail box
        \n58 – Red Mail Box .
        \n89 – Blue Mail Box .
        \n73 – Red Mail Box\u00a0 .<\/li>\n
      • The number is NOT on a red mailbox :
        \n60 – Green Mail box
        \n89 – Blue Mail Box .<\/li>\n
      • The number has more ones than tens.
        \n89 – Blue Mail Box .
        \nones are 9
        \nTens are 8
        \nones are more than tens .
        \nTherefore, The Mail Box number is 89\/<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        Go through the\u00a0enVision Math Common Core Grade 1 Answer Key\u00a0Topic 9 Compare Two-Digit Numbers\u00a0regularly and improve your accuracy in solving questions. enVision Math Common Core 1st Grade Answers Key Topic 9 Compare Two-Digit Numbers enVision STEM Project: Light and Objects Find Out Talk to friends and relatives about light. Discuss how light changes when it …<\/p>\n","protected":false},"author":1,"featured_media":25525,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/envisionmathanswerkey.com\/wp-content\/uploads\/2021\/06\/Envision-Math-Common-Core-Grade-1-Answer-Key-Topic-9-Compare-Two-Digit-Numbers.png","_links":{"self":[{"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/posts\/3526"}],"collection":[{"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/comments?post=3526"}],"version-history":[{"count":4,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/posts\/3526\/revisions"}],"predecessor-version":[{"id":27733,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/posts\/3526\/revisions\/27733"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/media\/25525"}],"wp:attachment":[{"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/media?parent=3526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/categories?post=3526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/envisionmathanswerkey.com\/wp-json\/wp\/v2\/tags?post=3526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}