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