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