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