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