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