Erbijsommen t/m 1.000
Optellen
| 1. | 311 + 216 = |
505
|
973
|
527
|
993
|
| 2. | 377 + 333 = |
710
|
572
|
970
|
900
|
| 3. | 404 + 240 = |
644
|
848
|
504
|
945
|
| 4. | 143 + 110 = |
253
|
425
|
456
|
454
|
| 5. | 472 + 379 = |
851
|
912
|
889
|
566
|
| 6. | 176 + 113 = |
252
|
475
|
371
|
289
|
| 7. | 466 + 434 = |
900
|
997
|
695
|
748
|
| 8. | 285 + 168 = |
497
|
214
|
453
|
370
|
| 9. | 379 + 256 = |
745
|
635
|
615
|
502
|
| 10. | 472 + 359 = |
683
|
762
|
831
|
861
|
| 11. | 319 + 278 = |
597
|
842
|
852
|
903
|
| 12. | 421 + 153 = |
747
|
721
|
574
|
510
|