Why does 2 × 9 = 18?

Because adding 2 9's together makes 18.

That is, because 9 + 9 = 18.

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Keep practicing
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108
120
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144

Why does 2 × 9 = 18?

Because adding 2 9's together makes 18.

That is, because 9 + 9 = 18.

Keep practicing