Envision Math 2nd Grade Textbook Answer Key Topic 2.6 Making 10 to Add 9
Making 10 to Add 9
Question 1.
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Question 2.
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Question 3.
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Question 4.
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Home Connection Your child explored strategies for making 10 to help add with 9.
Home Activity Have your child use pennies to make a group of 9 and a group of 5. Ask your child to show you how to make a group of 10 pennies to help find the sum.
AF 1.1, Grade 1 Write and solve number sentences from problem situations that express relationships
involving addition and subtraction. Also AF 1.0.
Guided Practice
Make 10 to add 9.
Use counters and your workmat.
Question 1.
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Question 2.
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Do you understand? Compare adding 9 to any number and adding 10 to that same number. What is different?
Independent Practice
Make 10 to add 9.
Use counters and your workmat.
Question 3.
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Question 4.
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Question 5.
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Question 6.
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Question 7.
8 +9 = ___
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Question 8.
9 + 7 = ___
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Question 9.
9 +2 = ___
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Question 10.
9 +9 =___
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Question 11.
1 +9 = ___
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Question 12.
5 + 9 = ___
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Number Sense
Find the missing number.
Question 13.
9 + 3 = + 2
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Question 14.
+ 9 = 10 + 6
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Problem Solving
Solve the problems below.
Question 15.
Tan’s team has 9 points. They score 7 more points. How many points do they have in all?
___ points
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Question 16.
Ana’s team has 9 bats. Nico’s team has 8 bats. How many bats are there in all?
___ bats
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Question 17.
Mary wrote an addition sentence. What number makes her addition sentence true? Mark your answer.
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Question 18.
Journal Draw a picture to show how you can make 10 to help you add 5 + 9.
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