问题 解答题
脱式计算.
2-
6
13
÷
9
26
-
2
3
2
3
-(
5
6
-
3
4
)÷
3
8
答案

(1)2-

6
13
÷
9
26
-
2
3

=2-

6
13
×
26
9
-
2
3

=2-

4
3
-
2
3

=0;

(2)

2
3
-(
5
6
-
3
4
÷
3
8

=

2
3
-(
10
12
-
9
12
)×
8
3

=

2
3
-
1
12
×
8
3

=

2
3
-
2
9

=

6
9
-
2
9

=

4
9

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