作业帮 > 数学 > 作业

计算下面各题.3.52+8.4+2.6       

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/07/18 11:21:35
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,
=(5.94+1.06)+(6.7+0.3),
=7+7,
=14;
(3)42.24-6.24-3.76,
=42.24-(6.24+3.76),
=42.24-10,
=32.24;
               
(4)4.92+3.27-4.92+3.73,
=(4.92-4.92)+(3.27+3.73),
=0+7,
=7.