9.9×3.8 108×0.125.用简便方法计算(竖式)
问题描述:
9.9×3.8 108×0.125.用简便方法计算(竖式)
答
9.9x3.8=1x3.8-0.1x3.8=3.8-0.38=3.42
108x0.125=100x0.125+8x0.125=12.5+1=13.5