题目内容

(1)3
1
2
-(-
1
3
)+2
2
3
+(-
1
2
)

(2)(-24)×(
1
12
-
5
6
+
3
8
)

(3)(-
3
7
)÷(-1
1
4
)×|-
7
12
|

(4)-22-(-3)3×(-1)4
(1)原式=(3
1
2
-
1
2
)+(
1
3
+2
2
3

=3+3
=6;

(2)原式=(-24)×
1
12
-(-24)×
5
6
+(-24)×
3
8

=-2+20-9
=9;

(3)原式=(-
3
7
)÷
5
4
×
7
12

=(-
3
7
)×
4
5
×
7
12

=-
12
35
×
7
12

=-
1
5


(4)原式=-4+27×1
=23.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网