Mathematics, 12.07.2019 10:00 treaustin656

Xiao's teacher asked him to rewrite the sum 60 + 90 as the product of the gcf of the two numbers a sum. xiao wrote 3(20 + 30). what mistake did xiao make? how should he have written 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 a s...