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简便方法计算:12.5*3.7*0.8 9.6*10.1 2.9*0.65+2
9*0.035
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第1个回答 2014-01-11
12.5*3.7*0.8
=12.5×0.8×3.7=10×3.7=37;9.6*10.1 =9.6×(10+0.1)=96+0.96=96.96;2.9*0.65+29*0.035
=29×(0.065+0.035)
=29×0.1
=2.9;
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