简便计算12.8﹣0.5×0.5﹣0.75 1.25×3.2×0.8 8.37×1.4+8.6×8.37.
400﹣213.15÷10.5;17.46﹣7.83﹣2.17+2.54;7.5+2.5+0.6×0.4﹣3.24;1.23×4+4.92×7+2×4.92;(10﹣9.5×0.48)+15.9÷0.75;3.5×[6.8﹣(1.6+3.6÷0.9)].
能简算的要简算:①9.1﹣1.2÷6﹣6.24 ②4.7×10.2 ③0.88×4.9+0.88×5.1④2.5×8×0.4×0.125 ⑤(5.63﹣1.88)×0.2 ⑥0.25×43.7×4.
脱式计算.①6.4÷(0.3×2+0.2)②68.1﹣77.7÷0.7×0.5③3.5×5.2+0.35×48④4.05÷0.81+2.4.
计算下面各题能简算的要简便计算.32÷(11.08﹣1.48)×0.8 11.1×3.58+11.1×5.42﹣+3+﹣+.
计算下列各题,要写出主要计算过程,能简算的要用简便方法计算.①24÷0.2×1.6 ②1.9×2.6+2.6×0.1 ③5.1+34.1÷2.2④0.21×99+0.21 ⑤88.5÷0.8÷125 ⑥1.85×201.