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Xiao's teacher asked him to rewrite the sum 60+90 as the product of the GCF of the two numbers and a sum. Xiao wrote 3(20+30). What mistake did Xiao make? How should have rewrite the sum?
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Xiao's teacher asked him to rewrite the sum 60+90 as the product of the GCF of the two numbers and a sum. Xiao wrote 3(20+30).

What mistake did Xiao make? How should have rewrite the sum?

User MADMap
by
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1 Answer

1 vote
The GCF of 60 and 90 is 30. 30 * 5 = 150 and we require a product 30 and a sum.

Xiao's answer is wrong because the GCF is 30 not 3.

The answer could be 30(2 + 3)


User Gowtham S
by
8.3k points
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