6-
1
5
=
3
8
÷
1
12
=
6
7
+
1
2
=
1
6
×
9
4
=
1-
11
15
=
8
9
×
3
4
=
4÷
3
4
=
4
5
×
5
4
=
 
1
2
-
1
3
=
分析:利用分?jǐn)?shù)加減乘除的計算法則直接計算得出結(jié)果即可.
解答:
解:
6-
1
5
=5
4
5

3
8
÷
1
12
=
9
2

6
7
+
1
2
=
19
14
1
6
×
9
4
=
3
8
1-
11
15
=
4
15
8
9
×
3
4
=
2
3
4÷
3
4
=
16
3
4
5
×
5
4
=1
 
1
2
-
1
3
=
1
6
點評:此題考查分?jǐn)?shù)四則運(yùn)算的計算方法,注意計算結(jié)果的化簡.
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