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