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