➕
➕ Niveau 4D - cijferend optellen
Oefen grotere plussommen met honderdtallen en duizendtallen.
234 + 156 = ...
Front
390
Back
478 + 219 = ...
Front
697
Back
563 + 287 = ...
Front
850
Back
749 + 168 = ...
Front
917
Back
1250 + 375 = ...
Front
1625
Back
3400 + 2600 = ...
Front
6000
Back
4567 + 1234 = ...
Front
5801
Back
6789 + 1111 = ...
Front
7900
Back
999 + 1 = ...
Front
1000
Back
4999 + 1 = ...
Front
5000
Back
3450 + 2750 = ...
Front
6200
Back
12800 + 7200 = ...
Front
20000
Back
45000 + 17000 = ...
Front
62000
Back
125000 + 75000 = ...
Front
200000
Back
320000 + 180000 = ...
Front
500000
Back
99999 + 1 = ...
Front
100000
Back
234567 + 100000 = ...
Front
334567
Back
700500 + 99500 = ...
Front
800000
Back
45678 + 54322 = ...
Front
100000
Back
650000 + 350000 = ...
Front
1000000
Back