问题 解答题
计算下面各题(能简算的要简算).
2
3
+24×(
7
8
-
5
8
)(
1
4
+
5
6
-
1
3
)÷
1
12
17
24
×
3
4
+
17
24
÷4.
答案

(1)

2
3
+24×(
7
8
-
5
8

=

2
3
+24×
1
4

=

2
3
+6

=6

2
3

(2)(

1
4
+
5
6
-
1
3
)÷
1
12

=(

1
4
+
5
6
-
1
3
)×12

=

1
4
×12+
5
6
×12-
1
3
×12

=3+10-4

=9

(3)

17
24
×
3
4
+
17
24
÷4

=

17
24
×
3
4
+
17
24
×
1
4

=

17
24
×(
3
4
+
1
4

=

17
24

单项选择题
判断题