Splits het getal tot 20
Splitspiramide
| Oefening 1 | |||||
|
18
9
|
20
1
|
17
8
|
2
1
|
||
| Oefening 2 | |||||
|
13
9
|
6
5
|
8
5
|
9
5
|
||
| Oefening 3 | |||||
|
17
0
|
3
3
|
12
4
|
15
12
|
||
| Oefening 4 | |||||
|
17
0
|
15
3
|
5
0
|
16
3
|
||