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