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UNIT 5
CHAPTER 18
Lesson 18-4
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CHAPTER 18 SUBTRACTION STRATEGIES AND FACTS TO 18
Lesson 18-4 HANDS ON/ALGEBRA: Relate Addition and Subtraction
Relate Addition and Subtraction
Name ___________________________
Related facts use the same numbers.
This cube train shows the numbers 4, 9, and 13.
Use
and
. Add. Then subtract. Write the related subtraction facts.
1.
Add.
Subtract.
Write the related subtraction facts.
8
5
____
____
____
2.
Add.
Subtract.
Write the related subtraction facts.
9
____
____
____
6
____
____
____
3.
If you know
what related subtraction facts do you know?
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