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