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3/4×0点七五+1/4乘以0.75加75%用简便方法计算

原式=3/4x3/8+0.75+62.5%x75%=0.75x0.375+0.75+0.625x0.75=0.75x(0.375+0.625)+0.75=0.75x1+0.75=0.75+0.75=1.5或者=3/4x3/8+0.75+62.5%x75%=0.75x0.375+0.75+0.625x0.75=0.75x(0.375+1+0.625)=0.75x2=1.5供参考.

4 * +75%*7-0.75=4*0.75 + 0.75*7 - 0.75=0.75*(4+7-1)=0.75*10=7.5

7/3乘以4/3+7/4乘以0.75+7/5乘百分之75=(7/3+7/4+7/5)*4/3=7/12*4/3=7/9

4.25*0.75+75 %+4.75*3/4=4.25*.75+0.75+4.75*0.75=(4.25+1+4.75)*0.75=10*0.75=7.5

0.75*1.6+1.4*0.75+7.5=0.75*(1.6+1.4)+0.75*10=0.75*(3+10)=0.75*13=9.75

3/4乘3/4加0.75减75%=0.75*0.75+0.75-0.75=0.75*0.75=0.5625=9/16

75%*5+4分之3-0.75*2=0.75X5+0.75-0.75x2=0.75X(5+1-2)=0.75X4=3

3/4*8点二八+75/百+0点七五*五分之一=3/4x8.28+75/100+0.75x1/5=0.75x8.28+0.75+0.75x0.2=0.75(8.28+1+0.2)=0.75x9.48=1.5x4.74=3x2.87=8.61

简便计算3.7*3/4+5.3*0.75+75%=(3.7+5.3+1)*0.75=10*0.75=7.5

原式=3.3x0.75+0.75x5.7+1x0.75=(3.3+5.7+1)x0.75=(9+1)x0.75=10x0.75=7.5

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