问题 解答题
能简算的要简算.
3
4
×
7
12
÷
14
9
7
10
×101-
7
10
8
17
÷23+
1
23
×
9
17
17
12
×
3
34
÷
2
19
1
5
÷[
1
13
×(
1
5
+
2
3
)]
11
36
×
9
22
×6.
答案

(1)

3
4
×
7
12
÷
14
9

=

7
16
×
9
14

=

9
32

(2)

7
10
×101-
7
10

=

7
10
×(101-1),

=

7
10
×100,

=70;

(3)

8
17
÷23+
1
23
×
9
17

=

8
17
×
1
23
+
1
23
×
9
17

=(

8
17
+
9
17
)×
1
23

=1×

1
23

=

1
23

(4)

17
12
×
3
34
÷
2
19

=

1
8
×
19
2

=

19
16

(5)

1
5
÷[
1
13
×(
1
5
+
2
3
)],

=

1
5
÷[
1
13
×
13
15
],

=

1
5
÷
1
15

=3;

(6)

11
36
×
9
22
×6,

=

1
8
×6,

=

3
4

单项选择题
单项选择题