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