1.25乘3.7加1.25乘5.3减1.25等于
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/25 09:52:14
38.4✘13+30.8✘2✘13再答:13✘(38.4+30.8✘2)再答:8✘4✘25Ϩ
1.25乘9.1乘0.7加1.25乘9.1乘0.1=1.25乘9.1乘(0.7加0.1)=1.25X9.1X0.8=1.25X0.8X9.1=9.1
9.5乘1.01=9.5×(1+0.01)=9.5+0.095=9.59514.5乘2.8减2.8乘4.5=2.8×(14.5-4.5)=2.8×10=281.25乘(8加0.8)=1.25×8.8=
0.9乘8.4加1乘0.84=9×0.84+0.84=(9+1)×0.84=10×0.84=8.472乘1.25=9*(8*1.25)=9*10=900.36乘2.4加76乘0.036=0.36×2.
原式=1x2x3+2x3x4+3x4x5+...++7x8x9=6+24+60+120+210+336+504=1260
146除以1.25加15.4乘以8146÷1.25+15.4×8=14.6×8+15.4×8=(14.6+15.4)×8=30×8=240
0.91乘99加91乘0.01=0.91*(99+1)=0.91*100=911.25乘88加12除以5分之4=1.25*88+12*1.25=1.25*(88+12)=1.25*100=125
32x1.25+12.5x6.8=32x1.25+68x1.25=(32+68)x1.25=100x1.25=125
5.4乘5分之4加1.25乘3.2减0.6乘125%=5.4*4/5+1.25*3.2-0.6*1.25=(5+0.4)*0.8+1.25*(3.2-0.6)=4+0.4*0.8+1.25*2.6=4
41.2×8.1+11×1.25+3.7×1.9=354.5再问:有过程吗,要简算
0.358乘488加0.677乘358减1.25乘35.8=358乘0.488加0.677乘358减0.125乘358=358*(0.488+0.677-0.125)=358*1.04=358+358
41.2乘8.1加11乘1.25加53.7乘1.9=41.2乘(10减1.9)加11乘1.25加53.7乘1.9=412减41.2乘1.9+53.7乘1.9+11乘1.25=412+12.5乘1.9加
=1*2*3(1+2*2*2+7*7*7)/[1*3*5(1+2*2*2+7*7*7)]=1*2*3/(1*3*5)=2/5
1.25乘6.17加0.125乘18.3=1.25*6.17+0.125*18.3=1.25*6.17+1.25*1.83=1.25*(6.17+1.83)=1.25*8=10
6.4乘125%加1又5分之3除以(1减5分之1)加2乘1.25=6.4乘125%加1又5分之3×1.25加2乘1.25=(6.4+1.6+2)×1.25=10×1.25=12.5
2.5*0.875+0.25*1.25=2.5*0.875+2.5*1.25/10=2.5*(0.875+1.25/10)=2.5*(0.875+0.125)=2.5请参考.
54073等于5乘(10000)加4乘(1000)加7乘(10)加3乘(1)