将0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9填入一图中使横、竖、对角线3数的和是1.5

问题描述:

将0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9填入一图中使横、竖、对角线3数的和是1.5