Splits het getal tot 20
Splitspiramide
| Oefening 1 | |||||
|
11
3
|
3
1
|
17
9
|
6
4
|
||
| Oefening 2 | |||||
|
18
13
|
14
6
|
18
13
|
14
11
|
||
| Oefening 3 | |||||
|
20
0
|
12
4
|
4
0
|
13
6
|
||
| Oefening 4 | |||||
|
13
12
|
8
3
|
18
6
|
8
5
|
||