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How can you do 12 times 21 mentally?

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Anonymous

∙ 12y ago
Updated: 8/20/2019

10 x 21 = 210

2 x 21 = 42

210 + 42 = 252

12 x 21 = 252

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Wiki User

∙ 12y ago
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What is 21 times 12?

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