Lesson 18-4 HANDS ON/ALGEBRA: Relate Addition and Subtraction
Use cubes. Add. Then subtract.
Write the related subtraction facts.
4.
Add.
Subtract.
Write the related subtraction facts.
9
8
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5.
6.
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7.
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8.
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Choose the best answer.
9.
30 is _______ than 37
greater
less
10.
4
8
Your child learned how addition and subtraction are related.
Activity: Have your child use small household objects, such as beans or buttons, to show how
is related to
and