2.5×64×1.25咋简算!今天回答!3.24×0.16+0.0324×84简算,7.5×3.1÷2.5×100咋简算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/24 07:46:28
2.5×64×1.25咋简算!今天回答!3.24×0.16+0.0324×84简算,7.5×3.1÷2.5×100咋简算,都要今天
![2.5×64×1.25咋简算!今天回答!3.24×0.16+0.0324×84简算,7.5×3.1÷2.5×100咋简算](/uploads/image/z/6266918-38-8.jpg?t=2.5%C3%9764%C3%971.25%E5%92%8B%E7%AE%80%E7%AE%97%21%E4%BB%8A%E5%A4%A9%E5%9B%9E%E7%AD%94%213.24%C3%970.16%2B0.0324%C3%9784%E7%AE%80%E7%AE%97%2C7.5%C3%973.1%C3%B72.5%C3%97100%E5%92%8B%E7%AE%80%E7%AE%97)
2.5×64×1.25=2.5x8x(8x1.25)=20x10=200
3.24×0.16+0.0324×84=3.24×0.16+3.24×0.84=3.24×(0.84+0.16)=3.24
7.5×3.1÷2.5×100=2.5x3×3.1÷2.5×100=2.5÷2.5x3×3.1×100=930
3.24×0.16+0.0324×84=3.24×0.16+3.24×0.84=3.24×(0.84+0.16)=3.24
7.5×3.1÷2.5×100=2.5x3×3.1÷2.5×100=2.5÷2.5x3×3.1×100=930