能简算的用简便方法计算(736÷16+37)×18 (+﹣)÷ [﹣(﹣)]×(﹣)×(+)20.14×1994﹣19.93×2014÷[(+)÷]
×+×2的末尾有 个零.
计算下面各题,能简算的要简算.2.7+3.71+2.29+7.3 3.5×3+3.5×7 26.8﹣1.2×4 1.5×1.3×4.
计算,能简算的要简算14.85﹣1.58×8+31.2÷1.2; 2.25×+2.75÷+60%
计算6.28﹣40÷16×2.5; 1.8×+2.2×.