Los de erafsommen tot 20 op
Erafsommen
|
1.
11 – 0 =
4
11
|
2.
7 – 5 =
2
4
|
3.
6 – 1 =
2
5
|
4.
14 – 12 =
7
2
|
|
5.
2 – 0 =
2
3
|
6.
17 – 3 =
14
18
|
7.
19 – 16 =
2
3
|
8.
10 – 10 =
0
5
|
|
9.
11 – 1 =
10
7
|
10.
16 – 9 =
7
9
|
11.
10 – 3 =
7
1
|
12.
18 – 3 =
15
8
|
|
13.
17 – 9 =
12
8
|
14.
6 – 5 =
5
1
|
15.
20 – 12 =
8
11
|
16.
5 – 4 =
2
1
|
|
17.
19 – 1 =
21
18
|
18.
9 – 7 =
4
2
|
19.
7 – 0 =
2
7
|
20.
1 – 0 =
4
1
|