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