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