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