Why does 5 x 5 = 25?

Because adding 5 5's together makes 25.

That is, because 51 + 52 + 53 + 54 + 55 = 25.

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Why does 5 x 5 = 25?

Because adding 5 5's together makes 25.

That is, because 51 + 52 + 53 + 54 + 55 = 25.

Keep practicing