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Y_Kistochka [10]

2 years ago

11

If used compensation to find product of 37x4 first she found 40x4=160 then adjusted that product by adding 3 groups of 4 to get

her final answer 172. What did she do incorrectly?

1 answer:

xeze [42]2 years ago

7 0

She added, but she added to 37, so she should have subtracted 3 groups of 4 instead of adding.

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Answer:

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