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