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