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