Topic 03 · Grades 4–7

Factors & Multiples

Primes, factor trees, GCF and LCM. This number sense makes fractions, ratios and algebra feel natural.

Flashcard video playlist

Hit pause as soon as the question is read. Solve it on paper, then watch the explanation.

1. What are factors?

Video 1 of 27 · 1:33

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Fractions

Grades 4–8 · New York City

SMART Worksheets in the program are rebuilt every week from your child's answers and confidence marks. Start with a free evaluation.