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