Erafsommen tot 20
Erafsommen
|
1.
15 – 6 =
5
9
|
2.
5 – 2 =
3
1
|
3.
18 – 7 =
4
11
|
4.
7 – 7 =
4
0
|
|
5.
5 – 4 =
5
1
|
6.
4 – 4 =
0
2
|
7.
14 – 0 =
14
2
|
8.
15 – 0 =
15
17
|
|
9.
18 – 7 =
11
7
|
10.
9 – 7 =
2
6
|
11.
13 – 10 =
7
3
|
12.
10 – 4 =
1
6
|
|
13.
17 – 0 =
17
12
|
14.
17 – 10 =
3
7
|
15.
20 – 3 =
17
15
|
16.
20 – 0 =
20
24
|
|
17.
18 – 11 =
5
7
|
18.
19 – 5 =
19
14
|
19.
5 – 5 =
0
2
|
20.
17 – 17 =
3
0
|