计算下面各题. 3.52+8.4+2.6 5.94+6.7+1.06+0.3 42.24-6.24-3.76 4.92+3.27-4.92+3.73.

问题描述:

计算下面各题.
3.52+8.4+2.6                    
5.94+6.7+1.06+0.3
42.24-6.24-3.76                 
4.92+3.27-4.92+3.73.

(1)3.52+8.4+2.6,=3.52+(8.4+2.6),=3.52+11,=14.52;                    (2)5.94+6.7+1.06+0.3,...