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