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