用你喜欢的方法计算下面各题
99×4.2+4.2 0.25×1.25×3.2
6.4×14+15×6.4+6.4 (1.3+1.3×0.125×8)÷(80﹣77.4)
4×(25+2.5+0.25)÷111 6.25÷〔(17.2﹣3.6×4.5)÷0.32〕
用你喜欢的方法计算下面各题
99×4.2+4.2 0.25×1.25×3.2
6.4×14+15×6.4+6.4 (1.3+1.3×0.125×8)÷(80﹣77.4)
4×(25+2.5+0.25)÷111 6.25÷〔(17.2﹣3.6×4.5)÷0.32〕