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UNIT 3
CHAPTER 11
Lesson 11-1
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CHAPTER 11 RELATING ADDITION AND SUBTRACTION
Lesson 11-1 HANDS ON/ALGEBRA: Relate Addition to Subtraction
Relate Addition to Subtraction
Name ___________________________
Math Word
related facts
Related facts
use the same numbers.
Use
and
. Add. Then subtract. Write the related subtraction facts.
1.
Add.
Subtract.
Write the related subtraction facts.
5 + 6 = _______
6
_______ - _______ = _______
5
_______ - _______ = _______
2.
Add.
Subtract.
Write the related subtraction facts.
3 + 9 = _______
9
_______ - _______ = _______
3
_______ - _______ = _______
3.
If you know 5 + 7 = 12, what related subtraction facts do you know?
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