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