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How can you write 72+ (8+19) to make easier to add?
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How can you write 72+ (8+19) to make easier to add?

User Jalal Sordo
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you just change 8 and 19 which is 27 then just ad 72 + 27
User Red Mercury
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72+(8+19)= \\\\ =70+2+8+10+9= \\\\ =80+10+9= \\\\ =90+9= \\\\=\boxed{99}
User Cap Barracudas
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