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Corina multiplied 62 x 22 and found a product of 1,042.is Corina’s answer reasonable? Explain.

User Studocwho
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2 Answers

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If you round 62 down to 60 and 22 down to 20, it is easy to multiply them together in your head. Just multiply 6 and 2 and add two 0s.

Knowing that 60 × 20 = 1200, we can tell that the product of 62 × 22 has to be larger, since we rounded down to get 1200.

1042 < 1200, so we know the answer is not reasonable.
User RodneyTrotter
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3 votes
no as the answer to that multiplication equation is 1364
User Fronzee
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