赚现金
计算下面各题,能简算的要写出简算过程.①6.72+2.08×4×1.5②12.56÷2.5÷0.4③2.85×4.7+28.5×0.53④9.88÷[5×(7.34﹣6.96)]⑤2.5×3.2×1.25⑥0.56×99.
试题篮