问题 解答题
计算下面各题
5
8
÷
3
4
×
9
25
1
56
÷(
3
14
÷
6
13
3
10
×(
5
7
-
10
21
7
16
×32+32×
9
16
答案

(1)

5
8
÷
3
4
×
9
25

=

5
6
×
9
25

=

3
10

(2)

1
56
÷(
3
14
÷
6
13
),

=

1
56
÷
13
28

=

1
26

(3)

3
10
×(
5
7
-
10
21
),

=

3
10
×
5
21

=

1
14

(4)

7
16
×32+32×
9
16

=(

7
16
+
9
16
)×32,

=1×32

=32.

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