Oefen de erafsommen tot 12
Erafsommen
|
1.
1 – 0 =
1
2
4
3
|
2.
11 – 9 =
4
5
6
2
|
3.
5 – 2 =
5
7
3
2
|
4.
12 – 3 =
2
12
9
7
|
|
5.
1 – 1 =
2
3
4
0
|
6.
9 – 4 =
8
7
5
6
|
7.
5 – 0 =
5
3
7
9
|
8.
3 – 0 =
3
4
1
6
|
|
9.
5 – 5 =
2
5
3
0
|
10.
7 – 5 =
2
5
4
7
|
11.
5 – 2 =
6
2
7
3
|
12.
11 – 2 =
1
14
9
6
|
|
13.
2 – 1 =
1
3
6
2
|
14.
5 – 2 =
1
3
4
2
|
15.
8 – 5 =
3
8
7
1
|
16.
12 – 3 =
4
8
9
14
|
|
17.
5 – 4 =
5
4
2
1
|
18.
10 – 9 =
5
1
3
4
|
19.
1 – 1 =
2
1
4
0
|
20.
4 – 4 =
1
0
4
5
|