问题 解答题
计算下面各题.(能简算的要用简便方法计算.)
5
12
×
7
25
×
3
14
7
9
÷
1
2
÷
35
36
3
5
×
8
9
÷
5
8

5
12
×4
1
14
×(
7
8
+7)
5
6
×
1
4
+
5
6
×
3
4
答案

5
12
×
7
25
×
3
14
=
1
40

7
9
÷
1
2
÷
35
36

=

7
9
×2×
36
35

=

8
5

3
5
×
8
9
÷
5
8

=

8
15
×
8
5

=

64
75

5
12
×4=
5
3

1
14
×(
7
8
+7),

=

1
14
×
7
8
+7×
1
14

=

1
16
+
1
2

=

9
16

5
6
×
1
4
+
5
6
×
3
4

=

5
6
×(
1
4
+
3
4
),

=

5
6

单项选择题
单项选择题