15.26减2.34减1.27减0.39 用简便方法计算
问题描述:
15.26减2.34减1.27减0.39 用简便方法计算
答
15.26-2.34-1.27-0.39
=15.26-(2.34+1.27+0.39)
=15.26-4
=11.26