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