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