Erbijsommen t/m 1.000
Optellen
| 1. | 500 + 299 = |
718
|
799
|
593
|
542
|
| 2. | 465 + 415 = |
815
|
568
|
880
|
801
|
| 3. | 390 + 303 = |
571
|
693
|
591
|
523
|
| 4. | 379 + 306 = |
838
|
760
|
621
|
685
|
| 5. | 274 + 137 = |
411
|
307
|
354
|
295
|
| 6. | 446 + 137 = |
583
|
817
|
911
|
539
|
| 7. | 228 + 166 = |
394
|
257
|
272
|
437
|
| 8. | 400 + 176 = |
757
|
541
|
576
|
789
|
| 9. | 296 + 240 = |
536
|
788
|
895
|
508
|
| 10. | 336 + 253 = |
516
|
589
|
892
|
887
|
| 11. | 485 + 436 = |
921
|
925
|
572
|
784
|
| 12. | 409 + 355 = |
622
|
764
|
529
|
786
|