0.125*3.2*0.25的简便(
0.125X3.2X0.25怎样简便算? -
0.125X3.2X0.25=(0.125x8)x(0.4x0.25)=1x0.1=0.1
3.2×0.25×0.125 ＝4×0.8×0.25×0.125 ＝(4×0.25)×(0.8×0.125)＝1×0.1 ＝0.1
0.125X3.2X0.25=(0.125x8)x(0.4x0.25)=1x0.1=0.1
3.2×0.25×0.125 ＝4×0.8×0.25×0.125 ＝(4×0.25)×(0.8×0.125)＝1×0.1 ＝0.1
0.125X3.2X0.25 =(0.125x8)x(0.4x0.25)=1x0.1 =0.1
0.125*3.2*0.25=(0.125x0.8)x(4x0.25)=0.125x0.8x1=0.1(该题就是把3.2拆成4x0.8)
3.2×0.25×0.125(简便计算) -
3.2×0.25×0.125 =（0.4×0.25）×（8×0.125）0.1×1 =0.1
3.2x0.25x0.125 =(0.4x0.25)x(8x0.125)=0.1x1 =0.1 如有帮助请采纳，如对本题有疑问可追问，Good luck!
0.125乘0.25乘3.2『巧算』 急·! -
0.25×3.2×0.125 ＝0.25×4×0.8×0.125 ＝﹙0.25×4﹚×﹙0.8×0.125﹚＝1×0.1 ＝0.1
运用乘法交换律和结合律，可以使这道乘法算式计算简便。0.125×3.2×0.25 =0.125×8×0.4×0.25 =0.125×8×（0.4×0.25）1×0.1 =0.1
3.2*0.125*25怎么简便运算?(过程) -
3.2*0.125*25 =8*0.125*0.4*25 =1*10 =10
解：原式=(0.4x8)x0.125x25 =(25x0.4)x(0.125x8)=10x1 =10 方法：拆分后利用乘法结合律实现简便计算。