1.25x3.2x2.5简便运算
羿例建51841.25*(8+4)*2.5简算. -
宇晴婕19570457275 ______ =1.25X12X2.5=1.25X3X(4X2.5)=3.75X10=37.5
羿例建51840.125x3.2x2.5简便计算. -
宇晴婕19570457275 ______ 此题利用乘法分配律,把3.2转化成0.8*4,再利用乘法交换律,分别计算0.125*0.8、4*2.5的乘积,再相乘使得计算简便. 0.125x3.2x2.5 =0.125*0.8*4*2.5 =(0.125*0.8)*(4*2.5) =0.1*10 =1 一、乘法分配律 简便计算中最常用的方法是乘法分配律...
羿例建51841.25x32x2.5简算 快 -
宇晴婕19570457275 ______[答案] 1.25*32*2.5 =(1.25*8)*(4*2.5) =10*10 =100
羿例建51841.25x3.2x0.25简便计算? -
宇晴婕19570457275 ______ 1.25x3.2x0.25简便计算方法如下: 1.25x3.2x0.25=0.25*(4*0.8)*1.25=(0.25*4)*(0.8*1.25)=1*1=1 解题思路:对于此题,可以运用拆分的方法进行计算,把3.2拆成4和0.8,3.2=4*0.8,然后把式子代入原式,在进行计算. 扩展资料: 简便计算的...
羿例建51841.25*3.2*2.5怎么脱式计算 -
宇晴婕19570457275 ______ 解:1.25*3.2*2.5 =1.25*(8*0.4)*2.5 =1.25*8*(0.4*2.5) =10*1 =10
羿例建5184用简便方法计算下面各题,1.25x3.2x5 -
宇晴婕19570457275 ______ 用简便方法计算下面各题,1.25x3.2x5,1.25x3.2x5=1.25*8*(0.4*5)=10*2=20
羿例建5184谁知道下面的计算题怎么简便计算啊?
宇晴婕19570457275 ______ 1.25X8X0.4X2.5=1 0.34X12.5+0.125X66 =34X0.125+0.125X66 =(34+66)X0.125 =12.5
羿例建51841.25x3.2x2.5 -
宇晴婕19570457275 ______ 原式=5/4*3.2*2.5 =10
羿例建51841.25乘3.2乘2.5的简便计算是什么 -
宇晴婕19570457275 ______ 12.5x3.2x2.5 =12.5x8x0.4x2.5 =(12.5x8)x(0.4x2.5) =100x1 =100
羿例建51841.25*3.2*o.25 的简便计算 -
宇晴婕19570457275 ______ 1.25*3.2*o.25 =1.25*(0.8*4)*0.25 =(1.25*0.8)*(4*0.25) =1*1 =1