324×11.25+65.8×112.5 8888008×125 0.525÷13 125÷4×85.2
脱式计算,能简算要简算.72.8÷2.5÷4 0.83×7.2+0.83×2.8 18.305÷0.14﹣58.67 7.8×9.9.
下面各题,怎样算简便就怎样算.23.8﹣(13.8﹣5.6) 12.9﹣3.7+2.71﹣6.315.74﹣4.8﹣(15.74+5.2) 8.6+0.4﹣8.6+0.4.
混合运算(能简便的一定要简便)4.58+3.38+6.62 0.25×0.125×4×84.2×0.75+0.75×5.8 6.38÷0.25÷4.
合理、灵活地计算.5.5×17.3+6.7×5.5 12.5×32×2.5 7.28+3.2÷2.5 21.7÷1.25÷0.8.
怎样简便就怎样计算28.4×99+28.4 3.6×201 0.94×2.5﹣0.454×0.8×12.5×2.5 17.5÷0.25×17+13 12.5×32×2.5.