问题 解答题
用简便方法计算.
3
16
×(
4
9
+
2
3
5
14
÷
11
12
×
7
35
1
8
×4÷4×
1
8
7
36
÷
11
12
÷
5
33
57×
3
56
1
8
+
1
7
+
7
8
÷
7
5
(24+
4
9
)÷4
2
3
-
5
7
+
1
3
4
25
+
4
25
×10.
答案

(1)

3
16
×(
4
9
+
2
3

=

3
16
×
4
9
+
3
16
×
2
3

=

1
12
+
1
8

=

5
24

(2)

5
14
÷
11
12
×
7
35

=

5
14
×
7
35
×
12
11

=

1
14
×
12
11

=

6
77

(3)

1
8
×4÷4×
1
8

=

1
8
×4×
1
4
×
1
8

=(

1
8
×
1
8
)×(4×
1
4

=

1
64
×1

=

1
64

(4)

7
36
÷
11
12
÷
5
33

=

7
36
÷(
11
12
×
5
33

=

7
36
÷
5
36

=

7
5

(5)57×

3
56

=(56+1)×

3
56

=56×

3
56
+1×
3
56

=3+

3
56

=3

3
56

(6)

1
8
+
1
7
+
7
8
÷
7
5

=

1
8
+
1
7
+
5
8

=

1
8
+
5
8
+
1
7

=

3
4
+
1
7

=

25
28

(7)(24+

4
9
)÷4

=(24+

4
9
)×
1
4

=24×

1
4
+
4
9
×
1
4

=6+

1
9

=6

1
9

(8)

2
3
-
5
7
+
1
3

=

2
3
+
1
3
-
5
7

=1-

5
7

=

2
7

(9)

4
25
+
4
25
×10

=

4
25
×1+
4
25
×10

=

4
25
×(1+10)

=

4
25
×11

=

44
25

单项选择题
多项选择题