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