Why does 5 x 3 = 15?

Because adding 5 3's together makes 15.

That is, because 31 + 32 + 33 + 34 + 35 = 15.

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Why does 5 x 3 = 15?

Because adding 5 3's together makes 15.

That is, because 31 + 32 + 33 + 34 + 35 = 15.

Keep practicing