Erbijsommen t/m 1.000
Optellen
| 1. | 484 + 477 = |
765
|
961
|
934
|
535
|
| 2. | 484 + 414 = |
632
|
626
|
608
|
898
|
| 3. | 334 + 251 = |
536
|
613
|
585
|
780
|
| 4. | 457 + 426 = |
995
|
515
|
706
|
883
|
| 5. | 369 + 149 = |
598
|
518
|
920
|
953
|
| 6. | 380 + 180 = |
562
|
880
|
560
|
701
|
| 7. | 405 + 289 = |
681
|
955
|
716
|
694
|
| 8. | 275 + 268 = |
960
|
644
|
692
|
543
|
| 9. | 346 + 312 = |
621
|
658
|
868
|
805
|
| 10. | 266 + 137 = |
294
|
394
|
390
|
403
|
| 11. | 311 + 280 = |
591
|
713
|
954
|
786
|
| 12. | 286 + 215 = |
522
|
619
|
501
|
528
|