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