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