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用简便方法计算.10.1×7.5%0.75怎样算简便

﹙10+0.1﹚×7.5-0.75=75+0.75-0.75=75

10.1x7.5-0.75 =101x0.75-0.75 =(101-1)x0.75 =100x0.75 =75 希望能帮到你,请采纳正确答案. 你的点赞或采纳是我继续帮助其他人的动力!

75

如图

7.5*(10+0.1)-0.75=7.5*10-7.5*0.1-0.75=75

4.5

10.1=10+0.1答案就是75了

7.5*10.1-0.75 =0.75*101-0.75 =0.75*(101-1) =0.75*100 =75

0.75X10.1=0.75X(10+0.1)=0.75X10+0.75X0.1=7.5+0.075=7.575

原式=2.7*7.5+7.2*7.5+0.1*7.5=(2.7+7.2+0.1)*7.5=10*7.5=75

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