1.25x0.7x0.8简便计算

12.5X0.7X0.8简便计算=12.5x0.8x0.7=10x0.7=7

12.5x0.9X0.8简便计算（12.5×0.8）×0.9=10×0.9=9

1.25x0.25x0.05x64简便计算1.25x0.25x0.05x64=1.25x0.25x0.05x8×8=1.25x8x0.25x(0.05x8)=10x0.25x0.4=2.5x0.4=1

3.5x0.7+5.5x0.7+0.7简便计算提取0.7原式＝0.7（3.5+5.5+1）＝0.7*10＝7

简便计算：1.25x0.25x3.2200.2x7.8-7.8x0.2 

2.5x0.73x0.04简便计算2.5x0.04x0.73=0.0732.5先乘0.04得0.1然后0.1乘0.73得0.01乘法交换律2.5x0.04x0.73=0.1*0.73=0.0732.5*0.04*0.730.1*0.730.

简便计算.0.034x0.5x0.6先算后两个

（125+1.25+12.5）x0.8的简便计算你好：（125+1.25+12.5）x0.8=125×0.8+1.25×0.8+12.5×0.8=100+1+10=111

2.25x1.8+1.25x0.18简便计算2.25×1.8+1.25×0.18=2.25×1.8+0.125×1.8=(2.25+0.125)×1.8=2.375×(2-0.2)=2.375×2-2.375×0.2=4.75-0.475=

2.5x1.8+1.25x0.18简便计算2.5x1.8+1.25x0.18=2.5×1.8+12.5×1.8=（2.5+12.5）×1.8=15×1.8=15×2×0.9=30×0.9=27

0.5X0.8X0.04X12.5X0.6X2.5(简便计算）怎么算?0.5X0.8X0.04X12.5X0.6X2.5=(0.5*0.6)*(0.8*12.5)*(0.04*2.5)=0.3*10*0.1=0.30.5X0.8X0.04X

0.125x4.8x0.25简便计算0.125x4.8x0.25=0.125×8×（0.25×2）×0.3=1×0.5×0.3=0.150.125x4.8x0.25=0.125x8x0.6x0.25=1x0.15=0.150.125x4.8

1.25x0.7x0.8用简便运算和梯等式怎么写1.25x0.7x0.8=（1.25×0.8）×0.7=1×0.7=0.7

简便计算4.31x0.994.31x0.99=4.31x（1-0.01）=4.31x1-4.31x0.01=4.31-0.0431=4.26694.31×0.99=4.31×（1-0.01）=4.31×1-4.31×0.01=4.31-0.

用递等式：1.25X0.7X0.8的简便计算.用五年级的方法（整数乘法运算定律推广到小数）1.25X0.7X0.8=1.25X0.8X0.7=1X0.7=0.7希望对您有所帮助

6.72+0.28x1.51.25x0.25x0.07（简便计算） 

简便计算1250X0.037+0.125X160+12.5X2.70.45x72+45x0.18+4.5400.6x7-2003x0.4239x732+956x8.250x0.13x0.23.4x7-1.52.33x0.5x0.4x59.7

52.5x0.63+3.7x0.5怎么简便计算?8点钟前!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2.5x1.25x0.8x0.4简便计算,第一个必采纳. 

2.4x1.02和12.5x0.96x0.8的简便计算求!2.4x1.02+12.5x0.96x0.8=2.4x(1+0.02)+12.5x0.8x0.96=2.4+0.48+10x0.96=2.88+9.6=2.88+(10-0.4)=1