Splits het getal tot 20
Splitspiramide
| Oefening 1 | |||||
|
9
8
|
9
4
|
2
1
|
5
3
|
||
| Oefening 2 | |||||
|
5
1
|
2
0
|
18
9
|
16
13
|
||
| Oefening 3 | |||||
|
8
8
|
3
2
|
15
2
|
20
8
|
||
| Oefening 4 | |||||
|
7
4
|
12
12
|
13
8
|
12
5
|
||