问题 解答题
计算下面各题:
(1)540÷12×9+482
(2)
7
10
÷
1
5
+
3
8
×
2
3

(3)(
5
6
-
1
4
+
5
12
)×24
(4)20÷[1-(
1
4
+
1
3
)].
答案

(1)540÷12×9+482,

=45×9+482,

=405+482,

=887;

(2)

7
10
÷
1
5
+
3
8
×
2
3

=

7
10
×5+
1
4

=

7
2
+
1
4

=

15
4

(3)(

5
6
-
1
4
+
5
12
)×24,

=

5
6
×24-
1
4
×24+
5
12
×24,

=20-6+10,

=24;

(4)20÷[1-(

1
4
+
1
3
)],

=20÷[1-

7
12
],

=20÷

5
12

=20×

12
5

=48.

选择题
单项选择题 A1/A2型题