Properties of Addition Generator
Commutative, associative, and identity — fill in the missing number, or name the property. Free PDF.
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Every shuffle deals a brand-new worksheet — free and unlimited, answer key included.
Rules children already use without knowing the names
Every first grader who solves 2 + 9 by starting at 9 is using the commutative property; the vocabulary just arrives later. These sheets attach the names to the moves. Fill mode gives a sentence with one number missing — 6 + 4 = __ + 6 — so the property gets used before it gets labeled, with the property name printed quietly in the margin as a hint.
Name mode flips it: a complete sentence, three property words underneath, circle the one it demonstrates — which is exactly how the standard is assessed. Drill all three together or isolate commutative or associative while it is being taught.
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