Grade 2 · Math · Lesson 19

Understand Multiplication as Groups

We know how to write repeated addition. Now we meet a shortcut: the multiplication sign x. Instead of writing 4 + 4 + 4, we write 3 x 4 — which means "3 groups of 4."

What this lesson teaches

1Read a multiplication expression as "__ groups of __"
2Match a multiplication expression to the correct dot-group picture
3Connect multiplication to the matching repeated addition sentence

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