Ontario Curriculum Expectation:
2.C2.2 determine what needs to be added to or subtracted from addition and subtraction expressions to make them equivalent.
An equal expression is when the numbers on either side of the equal sign work the same even though they look different.
Both math expressions on either side of the equal sign add up to 5. The expressions are equivalent.
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1 of 101. Question
1. What is the missing number to make the expressions equal?
   7 + ___ = 4 + 8
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2 of 102. Question
2. What is the missing number to make the expressions equal?
   13 + ___ = 9 + 10
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3 of 103. Question
3. What is the missing number to make the expressions equal?
   20 − ___ = 14 − 6
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4 of 104. Question
4. What is the missing number to make the expressions equal?
   16 − 5 = ___ − 3
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5 of 105. Question
5. Fill in the blank to make the expressions equal.
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5 + = 8 + 7
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6 of 106. Question
6. Fill in the blank to make the expressions equal.
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3 + 2 = + 1
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7 of 107. Question
7. Fill in the blank to make the expressions equal.
   24 − ___ = 19 − 6
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8 of 108. Question
8. Fill in the blank to make the expressions equal.
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9 + = 11 + 2
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9 of 109. Question
9. Fill in the blank to make the expressions equal.
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14 − = 16 − 8
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10 of 1010. Question
10. Fill in the blank to make the expressions equal.
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12 + 5 = + 12
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