Why does 7 x 10 = 70?

Because adding 7 10's together makes 70.

That is, because 101 + 102 + 103 + 104 + 105 + 106 + 107 = 70.

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Why does 7 x 10 = 70?

Because adding 7 10's together makes 70.

That is, because 101 + 102 + 103 + 104 + 105 + 106 + 107 = 70.

Keep practicing