0.21除以9+0.22除以9+0.23除以9+0.24除以9 简便计算
问题描述:
0.21除以9+0.22除以9+0.23除以9+0.24除以9 简便计算
答
0.21×1/9+0.22×1/9+0.23×1/9+0.24×1/9
=(0.21+0.22+0.23+0.24)×1/9
=0.9/9=0.1
答
0.21除以9+0.22除以9+0.23除以9+0.24除以9
=(0.21+0.22+0.23+0.24)÷9
=0.9÷9
=0.1