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49
56
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48
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66
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132
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12
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36
48
60
72
84
96
108
120
132
144

Why does 7 x 3 = 21?

Because adding 7 3's together makes 21.

That is, because 3 + 3 + 3 + 3 + 3 + 3 + 3 = 21.

Mathgrow

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