题目内容

口算
11
12
-
5
6
=
9
10
×20=
12
5
÷2=
9
14
+
2
7
=
3
5
÷
1
12
=
5
18
×36=
6
7
÷3=		 6÷
5
4
=
分析：根据分数加减乘除的计算方法进行计算即可．
解答：解：
11
12
-
5
6
=
1
12
，
9
10
×20=18，
12
5
÷2=
6
5
，
9
14
+
2
7
=
13
14
，
3
5
÷
1
12
=
36
5
，
5
18
×36=10，
6
7
÷3=
2
7
，		 6÷
5
4
=
24
5
．
点评：口算时，注意运算符号和数据，然后再进一步计算即可．
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26.26÷26=		 4.57+6.43= 7.9×11-7.9= 3.14×32=
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÷22=
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3.3÷0.1= 1÷0.25= 0.6×5= 0.2×0.4=
0.25×36=
3
8
×3=
3
4
×12=		 4÷
4
7
=
1
2
÷
2
3
=
4
5
÷
6
5
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2
5
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5
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9
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8
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2
3
×
5
6
=
3
5
÷
1
4
=		 1÷50%=
5
7
-
1
3
=
3
4
+
1
8
=		 11÷
11
12
 10×40%=
7
4
×
4
5
=
口算．
11
12
-
5
6
=		 56×
5
8
=
2
3
÷6=
0+
5
7
=
4
5
×25=
3
8
÷
1
8
=
19
15
÷
3
5
=
1
3
-
1
5
=
2
3
×6=
6
7
×6=

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