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