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