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