0.25×1.25×0.67×32的简便运算（0.25x4）x（1.25x8）x0.67
red
＝0.25×1.25×0.67×（4×8）＝（0.25×4）（1.25×8）×0.67＝1×10×0.67＝6.7
图片
25×1.25×0.67×32=0.25×1.25×0.67×(4×8)=(0.25×4)×(1.25×8)×0.67=1×10×0.67=6.7
