问题 解答题
计算,能简算的要简算.
(
3
4
-
1
8
5
12
8
13
÷7+
1
7
×
5
13
6÷(
3
5
+
1
10
47×
9
48
2
3
×11-
2
3
×2
6
25
÷9+
6
25
×
8
9
答案

(1)(

3
4
-
1
8
)÷
5
12

=

5
8
÷
5
12

=

3
2

(2)

8
13
÷7+
1
7
×
5
13

=

8
13
×
1
7
+
1
7
×
5
13

=(

8
13
+
5
13
)×
1
7

=1×

1
7

=

1
7

(3)6÷(

3
5
+
1
10

=6÷

7
10

=

60
7

(4)47×

9
48

=(48-1)×

9
48

=48×

9
48
-1×
9
48

=9-

9
48

=8

13
16

(5)

2
3
×11-
2
3
×2

=

2
3
×(11-2)

=

2
3
×9

=6;

(6)

6
25
÷9+
6
25
×
8
9

=

6
25
×
1
9
+
6
25
×
8
9

=

6
25
×(
1
9
+
8
9

=

6
25
×1

=

6
25

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