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