问题 解答题
选择合理的方法计算:
12×(
2
3
+
1
6
37×
5
36
7
10
×
5
16
÷
21
32
5
12
×
7
25
×
3
14
7
8
+
13
16
)÷
13
16
7
13
×
3
4
+
3
4
×
6
13
答案

(1)12×(

2
3
+
1
6
),

=12×

2
3
+12×
1
6

=8+2,

=10;

(2)37×

5
36

=(36+1)×

5
36

=36×

5
36
+1×
5
36

=5+

5
36

=5

5
36

(3)

7
10
×
5
16
÷
21
32

=

7
32
×
32
21

=

1
3

(4)

5
12
×
7
25
×
3
14

=

7
60
×
3
14

=

1
40

(5)(

7
8
+
13
16
)÷
13
16

=

7
8
×
16
13
+
13
16
×
16
13

=

14
13
+1,

=2

1
13

(6)

7
13
×
3
4
+
3
4
×
6
13

=(

7
13
+
6
13
)×
3
4

=1×

3
4

=

3
4

单项选择题
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