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