下面各题,怎样简便就怎样算①13.6+7.8+6.4+72.2 ②3﹣﹣﹣ ③52.8×25﹣52.8×24 ④9÷ ⑤24×(+) ⑥÷1﹣().
脱式计算,(能简算的要简算)25×7.6×0.8 23.7﹣3.9+6.3﹣6.1 2.5×64×1.25.1÷(1﹣0.98) 5.9×7.8+5.9×1.2+5.9 26.8×0.25﹣6.8÷4.
计算下面各题,注意运用简便方法.30.3÷[(1.3+1.2)×0.6] 0.59×7.2﹣7.2×0.39 1.25×7.4×8 1.6﹣0.2÷5×40.
递等式计算.(能简算的要简算)①2.5×3.2×1.25 ②6.06﹣3.5×0.24③60.4﹣(10+9.6÷0.4) ④2.3×3.2+2.3×6.8.
脱式计算,能简算的要简算 19.6﹣26.72+80.4﹣3.28 1.5×(6﹣0.68)÷1.419.4×86+19.4×13+19.4 3.72÷1.3+0.18÷1.3.
计算下面各题,能简算的要简算.1.29+3.7+2.71+6.3 3.75÷[0.3×(1.34﹣0.84)] 7.2×7.2+7.2×2.80.25×0.8×0.125×4 25×10.8×0.04 15.32﹣1.8×5﹣3.46.