脱式计算: 0.75×18÷0.157.28+3.2÷2.52.05÷0.82+33.6 1.08×0.8÷0.2721.36÷0.8﹣12.94.28÷0.9÷4.1.
能简算的要简算 1.2×0.4+0.4×1.34×(1.5+0.25) 0.25×4.78×4(8.1﹣5.4)÷3.6+85.7.
计算下面各题,能简算的必须简算. 9.5×1.06﹣2.52÷2.4 6.25÷1.25÷0.82.5×(3.5﹣1.65)×0.4 27.2÷(3.2+23×0.6) 68.5+31.5÷(0.29+0.41)3.82×(2.8﹣1.3)﹣1.82×1.5.
计算,能简算的要简算. 49.2÷(4.3×2﹣0.4) 9().
计算下列各题.(能简算的要简算) 3.8﹣1.9+7.2﹣8.1 ()÷÷15= 40﹣(7.7+4.8÷1.2) ()×13×29=