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