家庭教育7.5x0.8+1.2x12.5+2.5x1.6简便计算
7.5×0.8+1.2×12.5+2.5×1.6简便计算如下：7.5×0.8+1.2×12.5+2.5×1.6=0.8×7.5+2.5×2×0.8+1.2×12.5=7.5×0.8...
共 2 篇文章
标签：5×0
2.33x0.5x0.4x5的简便方法
2.33×0.5×0.4×5的简便方法如下：2.33×0.5×0.4×5=2.33x（0.5×5）x0.4=2.33×2.5×0.4=2.33x（2....
7.5×0.8+1.2×12.5+2.5×1.6简便计算如下：7.5×0.8+1.2×12.5+2.5×1.6=0.8×7.5+2.5×2×0.8+1.2×12.5=7.5×0.8...
2.33×0.5×0.4×5的简便方法如下：2.33×0.5×0.4×5=2.33x（0.5×5）x0.4=2.33×2.5×0.4=2.33x（2....