5.06Ⅹ3.24+50.6Ⅹ0.576+5.06用简便方法计算?
2个回答
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5.06*3.24+50.6*0.576+5.06
= 50.6*0.1*3.24+50.6*0.576+50.6*0.1 [5.06=50.6*0.1]
= 50.6*(0.1*3.24)+50.6*0.576+50.6*0.1 [乘法结合律]
= 50.6*0.324+50.6*0.576+50.6*0.1
= 50.6*(0.324+0.576+0.1) [乘法分配律]
= 50.6*1
= 50.6
= 50.6*0.1*3.24+50.6*0.576+50.6*0.1 [5.06=50.6*0.1]
= 50.6*(0.1*3.24)+50.6*0.576+50.6*0.1 [乘法结合律]
= 50.6*0.324+50.6*0.576+50.6*0.1
= 50.6*(0.324+0.576+0.1) [乘法分配律]
= 50.6*1
= 50.6
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