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