Why does 5 x 4 = 20?

Because adding 5 4's together makes 20.

That is, because 41 + 42 + 43 + 44 + 45 = 20.

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Why does 5 x 4 = 20?

Because adding 5 4's together makes 20.

That is, because 41 + 42 + 43 + 44 + 45 = 20.

Keep practicing