Erbijsommen t/m 1.000
Optellen
| 1. | 495 + 407 = |
664
|
620
|
902
|
993
|
| 2. | 343 + 263 = |
582
|
656
|
952
|
606
|
| 3. | 478 + 444 = |
742
|
950
|
630
|
922
|
| 4. | 466 + 222 = |
864
|
688
|
554
|
887
|
| 5. | 440 + 376 = |
599
|
773
|
816
|
657
|
| 6. | 331 + 175 = |
600
|
506
|
920
|
952
|
| 7. | 325 + 181 = |
506
|
614
|
879
|
571
|
| 8. | 497 + 416 = |
821
|
680
|
526
|
913
|
| 9. | 438 + 135 = |
603
|
668
|
694
|
573
|
| 10. | 341 + 144 = |
485
|
285
|
204
|
420
|
| 11. | 352 + 142 = |
494
|
303
|
333
|
292
|
| 12. | 422 + 300 = |
516
|
659
|
923
|
722
|