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Multiplication is a fast way to add equal groups. 3 groups of 4 is 4 + 4 + 4 = 12.
We write it as 3 × 4 = 12. The × sign means groups of, or times.
An array shows rows and columns. 2 rows of 5 is 2 × 5 = 10.
Turn an array and the answer stays the same: 2 × 5 = 5 × 2. That's the turn-around rule!
You can skip count too: 5, 10, 15, 20. So 4 × 5 = 20!
