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