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