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