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Pedro’s book weighs 194 pounds. blanca’s book weighs 177 pounds. use estimation to determine about how much more pedro’s book weighs than blanca’s.

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Aisin

(i dont know what you mean by that cause clearly just do 194 - 177 = 17 pounds)

Round 194 pounds to 190 ; 177 to 180

In estimation, Pedro's book weighs 190 - 180 = 10 pounds more.
190 : 180 = 1.06 times more.

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