1.25乘以0.72用竖式计算 并验算
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/16 03:54:19
33乘以1.03简便计算=33x1+33x0.03=33+0.99=33.99(1.25加1.25加1.25)乘以5加8.75乘以15简便计算.=1.25x3x5+8.75x15=1.25x15+8.
33乘以1.03=33*(1+0.03)=33*1+33*0.03=33+0.99=33.99(1.25+1.25+1.25)*5+8.75*15=3.75*5+8.75*(10+5)=18.75+8
101×18.2-1.25×18.2×0.8=(101-1)×18.2=100×18.2=1820本题已解答,请点右下角“采纳答案”,支持一下.
1.25×320×25=1.25×80×4×25=100×100=100006.89×101-6.89=6.89×(101-1)=6.89×100=68916×0.25×1.25=8×1.25×(2×
等于7*8*1.25等于8*1.25*7等于10*7等于70
0.25*1.25*32=0.25*4*1.25*8=1*10=10
1.25乘以0.8乘以4乘以2.5=(1.25×0.8)×(4×2.5)=1×10=10
48×0.25×1.25=(40+8)×0.25×1.25=40×0.25×1.25+8×0.25×1.25=12.5+2.5=15
7.2x5.8+0.72x42=7.2x5.8+7.2x4.2=7.2x(5.8+4.2)=7.2x10=72
48*300——14400
4.02*35=(4+0.02)*35=4*35+0.02*35=140+0.7=140.748*0.25=40*0.25*8*0.25=10+2=128.9*9+8.9=8.9*(9+1)=89
1.25*(100-1)=125-1.25=123.75
1.2*1.25-0.2*1.25=1.25*(1.2-0.2)=1.25*1=1.25
207×44---------828828=9108
=(0.2×8)×7.5×1.25=(0.2×7.5)×(8×1.25)=1.5×10=15
把你的数学老师拉出来,打屁股!50大板,这样的题目都每教好,该打!6.25X7.6------------------------------------------------3750+4375--
1.25*2.5*3=1.25*2.5*4*8=(4*2.5)*(8*1.25)=10*10=100
(1.25乘以2.7乘以5.7)/(8.1乘以0.25乘以1.9)上下各乘以10000:=(125*27*57)/(81*25*19)上下各除以25:=(5*27*57)/(81*19)再各除以27: