Erbijsommen t/m 1.000
Optellen
| 1. | 272 + 143 = |
458
|
387
|
289
|
415
|
| 2. | 317 + 227 = |
501
|
544
|
879
|
658
|
| 3. | 470 + 147 = |
628
|
955
|
678
|
617
|
| 4. | 327 + 158 = |
485
|
483
|
385
|
339
|
| 5. | 460 + 456 = |
948
|
916
|
647
|
653
|
| 6. | 306 + 299 = |
706
|
901
|
846
|
605
|
| 7. | 409 + 105 = |
839
|
986
|
514
|
838
|
| 8. | 389 + 214 = |
833
|
869
|
603
|
632
|
| 9. | 385 + 277 = |
892
|
769
|
887
|
662
|
| 10. | 494 + 355 = |
849
|
656
|
928
|
521
|
| 11. | 497 + 209 = |
627
|
889
|
706
|
769
|
| 12. | 498 + 257 = |
755
|
926
|
584
|
869
|