这个拆括号变不变号呢.
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:数学作业 时间:2024/07/04 03:16:48
这个拆括号变不变号呢.
(24.73-9.92)+(5.37-11.08)
(13.1-9.28)-(4.5-2.74)
(24.73-9.92)+(5.37-11.08)
(13.1-9.28)-(4.5-2.74)
![这个拆括号变不变号呢.](/uploads/image/z/6555314-2-4.jpg?t=%E8%BF%99%E4%B8%AA%E6%8B%86%E6%8B%AC%E5%8F%B7%E5%8F%98%E4%B8%8D%E5%8F%98%E5%8F%B7%E5%91%A2.)
(24.73-9.92)+(5.37-11.08)
=(24.73+5.37)-(9.92+11.08)
=30-20
=10
(13.1-9.28)-(4.5-2.74)
=(13.1-4.5)-(9.28-2.74)
=8.6-6.54
=2.06
再问: 都看不懂,求详解
再答: (24.73-9.92)+(5.37-11.08) =24.73+5.37-9.92-11.08 =(24.73+5.37)-(9.92+11.08) =30-20 =10 (13.1-9.28)-(4.5-2.74) =13.1-4.5-9.28+2.74 =(13.1-4.5)-(9.28-2.74) =8.6-6.54 =2.06
=(24.73+5.37)-(9.92+11.08)
=30-20
=10
(13.1-9.28)-(4.5-2.74)
=(13.1-4.5)-(9.28-2.74)
=8.6-6.54
=2.06
再问: 都看不懂,求详解
再答: (24.73-9.92)+(5.37-11.08) =24.73+5.37-9.92-11.08 =(24.73+5.37)-(9.92+11.08) =30-20 =10 (13.1-9.28)-(4.5-2.74) =13.1-4.5-9.28+2.74 =(13.1-4.5)-(9.28-2.74) =8.6-6.54 =2.06