用竖式计算 124×71 206×15 470×23 82×405.
计算下面各题,能简算的要简算.8.5×(2.36+2.42)÷0.25 3.9÷1.3×6 4.25×6.3+3.7×4.25205×99 25.6﹣7.49﹣2.51 2.5﹣(6.8﹣4.9)×0.8.
下面各题怎样简便就怎样算.(1)3.7×99+3.7 (2)×7.7+3.3×0.75﹣75%(3)5.93+0.64+0.07+0.36 (4)(7.9﹣3.06÷0.68)×1.5(5)78÷2.5÷0.4 (6)105×(+)
计算下面各题,能简算的要简算.125×9.3×0.08 13.7×102﹣2×13.7(6.7+6.7+6.7+6.7)×2.5 4.5÷[(27.8﹣25.3)×0.4]0.096÷0.01+(75﹣28÷112) 90.8﹣(7.03﹣2.17)×4.5.
计算下面各题,能简便的就简便.(1)5.5×17.3+6.7×5.5 (2)1.5×105(3)9.07﹣22.78÷3.4 (4)3.8+4.29+2.1+4.2.
计算下面答题(能简算要简算) 1.69÷26 2.5×1.25×32 2.3×3.9÷(22﹣19.7)0.8×[13﹣(3.12+5.28)] 40.08﹣20.5×4÷2.5+1.6 5.4×0.6+4.6×0.6.