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