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