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