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