问题 解答题
列式计算.
8
15
×
4
5
5
9
÷
5
12
7
18
÷
5
3
7
12
×
6
35
÷
2
7
3
40
÷
9
20
×
6
17
3
8
×
5
7
÷
15
16
答案

(1)

8
15
×
4
5
=
32
75

(2)

5
9
÷
5
12

=

5
9
×
12
5

=

4
3

(3)

7
18
÷
5
3

=

7
18
×
3
5

=

7
30

(4)

7
12
×
6
35
÷
2
7

=

7
12
×
6
35
×
7
2

=

7
20

(5)

3
40
÷
9
20
×
6
17

=

3
40
×
20
9
×
6
17

=

1
17

(6)

3
8
×
5
7
÷
15
16

=

3
8
×
5
7
×
16
15

=

2
7

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