3.75乘2.9加375乘0.070加0.375的简便计算计算?
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解:该题用简便方法计算,可提取相同的小数0.375即可:
3.75X2.9十375X0.070十0.375
=0.375×10X2.9十0.375X1000×0.070十0.375
=0.375×(29十70十1)
=0.375X100
=37.5
3.75X2.9十375X0.070十0.375
=0.375×10X2.9十0.375X1000×0.070十0.375
=0.375×(29十70十1)
=0.375X100
=37.5
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