Splits het getal tot 20
Splitspiramide
| Oefening 1 | |||||
|
10
5
|
9
1
|
19
8
|
2
1
|
||
| Oefening 2 | |||||
|
17
17
|
15
3
|
7
7
|
8
7
|
||
| Oefening 3 | |||||
|
5
0
|
20
17
|
15
7
|
16
11
|
||
| Oefening 4 | |||||
|
15
13
|
6
2
|
16
14
|
8
5
|
||