Question 10 • Grade 7 Mathematics
Rewrite subtraction as adding a negative: 12 − 7 + 3 = 12 + (−7) + 3. The commutative property lets you switch the order of the addends, giving 12 + 3 + (−7), so choice A is true. The associative property only changes how addends are grouped; it does not change their order.
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