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