怎样简便就怎样计算①1.25×1.4×8 ②15﹣1.7﹣1.3 ③7×0.2×1.5④32.2×4+17.8×4 ⑤10.1×87 ⑥47.2÷4÷5.9.
递等式计算: 2.54+2.84+7.46 2.5×4﹣4.8÷1.6 3.2÷0.4×(5.38﹣4.13) [11.4﹣(2.8÷0.7﹣2.5×1.2)]÷5.2.
计算: 12.5×7.8×0.8 [8.85﹣(1.5+3.75)]÷1.8 4.5﹣3.2+3.6÷1.44 0.91÷0.5÷2.6.
用简便方法进行计算 17.17﹣6.8﹣3.2﹣6.17 2.8×3.5+3.5×18.2﹣3.55.4×101.
用递等式计算.(能简算的就简算) (1)2.54×9+1.27×(0.5÷O.25) (2)12÷(4.32﹣4.O2)×O.47.
6.71+2.29﹣4.71=0.6﹣0.6÷3=9.3+0×9.3=10÷0.1﹣0.1÷10=