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