Why does 9 x 12 = 108?

Because adding 9 12's together makes 108.

That is, because 121 + 122 + 123 + 124 + 125 + 126 + 127 + 128 + 129 = 108.

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Why does 9 x 12 = 108?

Because adding 9 12's together makes 108.

That is, because 121 + 122 + 123 + 124 + 125 + 126 + 127 + 128 + 129 = 108.

Keep practicing