3.2x12.5怎么简便运算

郝喻版2476用简便方法计算.3.2x12.5x0.25 18分之7x4分之5+18分之11除以5分之4 十万火急,订正,真的,写清楚 -
廖送衫15779369657 ______ 3.2x12.5x0.25 =0.8x12.5x4x0.25 =10x1 =10 18分之7x4分之5+18分之11除以5分之4 =7/18x5/4+11/18x5/4 =5/4x(7/18+11/18) =5/4x1 =5/4

郝喻版24763.14*32*2.5*12.5简便计算 -
廖送衫15779369657 ______ 3.14*32*2.5*12.5简便计算 解: 3.14*32*2.5*12.5 =3.14*4x8*2.5*12.5 =3.14*(4*2.5)*(8x12.5) =3.14x10x100 =3140

郝喻版24763.2x125用进行简便计算. -
廖送衫15779369657 ______ 3.2*125 =0.4*8*125 =0.4*1000 =400

郝喻版2476简便算式3.2x(2.5+12.5)= -
廖送衫15779369657 ______ 原式等于3.2*2.5+3.2*12.5=8+40=48 ~回答完毕~ ~结果仅供参考~ ~\(^o^)/~祝学习进步~~~

郝喻版24763.2乘125用什么运算律简便,是怎样算的 -
廖送衫15779369657 ______ 原式 =3.2x125 =(0.4x8)x125 =0.4x(8x125) =0.4x1000 =400

郝喻版24760.32x2.5怎样简便计算 -
廖送衫15779369657 ______ 0.32x2.5 =0.8*0.4*2.5 =0.8*(0.4*2.5) =0.8*1 =0.8

郝喻版24760.32x125x2.5怎么简便 -
廖送衫15779369657 ______ 0.32x125x2.5=(0.8x125)x(0.4x2.5)=100x1=100

郝喻版24763.2乘12.5乘0.5怎么简便??? -
廖送衫15779369657 ______ 3.2乘12.5乘0.5 =0.8x12.5x4x0.5 =10x2 =20

郝喻版24763.2*12.5怎么简算? -
廖送衫15779369657 ______ 0.4*8*12.5=0.4*100=40

郝喻版24760.25*3.2x1.25怎样简算 -
廖送衫15779369657 ______ 0.25*3.2x1.25=0.25*4*0.8*1.25=1*1=1