Division as an Unknown Factor for 3rd Grade Math
For students to understand division as an unknown factor, they must first understand the factors and product that correspond with the factors and quotient. For example,
for a student to be able to solve:
45 ÷ 9
they should first understand that:
9 × 5 = 45
There are two ways that I like to teach division as an unknown factor; arrays and fact families.

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