分数乘除法口算题.docx

文档介绍：1 1
2
3
2
1
X -=
—
X —=
12
X —=
—
+ 3=
2 2
3
4
3
4
4 1
8
5
、/ 4
5
.
* 4=
X _ =
5 * =
5 2
9
4
5
6
2 2
1
1
2
5
~~^ =
—
.X 2=
X 13=
3 3
4
3
13
26
5 2
3
1
1
2
X _ =
* 3=
36 X =
6 5
8
2
2
5
5
5
6
6
5-6=
* 5=
X 18=
6
9
7
5
“ 1
6
3
1
1
1
26 X =
—
X 2=
X —=
—
2
7
5
2
7
2
c 2
3
4
5
4
9
2
24 -=
X —=
+ 一 =
、
=
3
8
5
8
8
5
3
8
1
1
3
1
3
-8=
—
+ 一 =
X 15=
—
+ 一 =
11
4
3
5
2
4
3 2
5
8
X —=
14X —=
1 *
5 =
* 4=
4 3
7
7
9
7
3 =
2
3
1 x
3- =
.
X 27=
8
4
3
2
3
4
4
7
1
1
X 3=
—
— =
—
X 8=
—
+ 3=
5
5
10
4
4
2
5
12
6* =
0*

* =
26X —=
7
6
13
8 8
2 =
3 =
.
125X 8=
1
9*
3 3
3
4
1
7
5
2
2
6
6X =
—
-X —=
—
X —=
+ 6=
7
10 7
3
3
7
2 1
8
1 _
14
15
X —=
X 4=

=
■ X —
5 2
9
4
45
> 21
2
22
1
1
3 =
100* =
88
• —
+ —=
4X
3
3
2
2
4
2
5
1
12* =
25 X 4=
10* =
* 4=
3
8
3
5 4
17
12 29
1
X —=
——
-X 60=
—
-X 一 =
12
.
4 5
15
58 36
3
3
3
5
6
2
X 8=
-X 11 =
10* —=
X —=
4
22
7
7
3
1 2
3
2
5
12
5 =
—* —=