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