MSTEP 3rd Grade Math Practice Test

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Which term describes a multiplication fact that helps you solve another related fact, such as 3x5=15?

Fact Family

Helper Fact

Using a known multiplication fact to help solve another related one is about a helper fact. When you know 3×5=15, you can use that to figure out 3×7 by breaking 7 into 5 plus 2 and computing 3×7 = 3×5 + 3×2. The 3×5=15 part is the helper fact because it makes the bigger calculation easier. The other terms don’t fit this idea: a fact family is a group of related multiplication and division facts, a greater than is a comparison, and the product is the final result of multiplying, not a supporting fact.

Greater Than

Product