【0.5+(2-0.75)】*1.6 要简便运算

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【0.5+(2-0.75)】*1.6要简便运算【0.5+(2-0.75)】*1.6要简便运算【0.5+(2-0.75)】*1.6要简便运算【0.5+(2-0.75)】*1.6=2.5*1.6-0.75

【0.5+(2-0.75)】*1.6 要简便运算
【0.5+(2-0.75)】*1.6 要简便运算

【0.5+(2-0.75)】*1.6 要简便运算
【0.5+(2-0.75)】*1.6
=2.5*1.6-0.75*1.6
=4-1.2
=2.8

(2/4+2-3/4)*1.6
=(2-1/4)*1.6
=3.2-0.4