Envision Math 2nd Grade Textbook Answer Key Topic 2.2 Doubles
Doubles
Question 1.
__ + ___ = ___
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Question 2.
__ + __ = ___
Answer:
Home Connection Your child learned about doubles facts.
Home Activity Look for doubles around the house, such as 2 rows of 6 eggs, 2 piles of 4 shirts, or 2 groups of 3 spoons. Ask your child to tell you the doubles fact that goes with each one.
AF 1.1, Grade 1 Write and solve number sentences from problem situations that express relationships involving addition and subtraction. Also AF 1.0.
Guidance Practice
Complete the doubles. Then solve.
Question 1.
8 + 8 = 16
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Question 2.
__ + 3 = __
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Question 3.
__ + 5 = 10
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Question 4.
7 + __ = 14
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Question 5.
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Question 6.
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Question 7.
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Question 8.
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Do you understand? Is 8 + 9 = 17 a doubles fact? Explain
Independent Practice
Complete the doubles. Then solve.
Question 9.
5 + __ = __
Answer:
Question 10.
__ + 4 = __
Answer:
Question 11.
__ + 9 = __
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Question 12.
2 + __ = 4
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Question 13.
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Question 14.
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Question 15.
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Question 16.
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Algebra Complete the doubles facts.
Question 17.
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Problem Solving
Draw pictures to help solve the problems.
Question 18.
Jeff bought 9 oranges. Joe bought the same number of oranges. How many oranges did they buy in all?
____ + ____ = ____ oranges
Question 19.
Alex picked 2 bunches of flowers. Each bunch had 5 flowers in it. What will Alex add to find how many flowers in all?
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Question 20.
Journal Write a riddle about a doubles fact.
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