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