Splits het getal tot 20
Splitspiramide
| Oefening 1 | |||||
|
6
4
|
8
4
|
18
4
|
13
13
|
||
| Oefening 2 | |||||
|
18
8
|
16
15
|
15
1
|
9
4
|
||
| Oefening 3 | |||||
|
11
7
|
15
12
|
8
5
|
7
1
|
||
| Oefening 4 | |||||
|
9
0
|
2
1
|
18
4
|
11
1
|
||