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