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