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