Erbijsommen t/m 1.000
Optellen
| 1. | 436 + 145 = |
877
|
968
|
581
|
825
|
| 2. | 300 + 195 = |
297
|
437
|
255
|
495
|
| 3. | 477 + 129 = |
606
|
831
|
890
|
782
|
| 4. | 453 + 449 = |
902
|
708
|
896
|
781
|
| 5. | 452 + 264 = |
855
|
716
|
597
|
525
|
| 6. | 247 + 246 = |
491
|
493
|
201
|
443
|
| 7. | 179 + 108 = |
452
|
287
|
404
|
263
|
| 8. | 262 + 255 = |
528
|
517
|
883
|
602
|
| 9. | 115 + 101 = |
374
|
454
|
216
|
448
|
| 10. | 391 + 229 = |
830
|
656
|
620
|
502
|
| 11. | 278 + 208 = |
486
|
386
|
499
|
467
|
| 12. | 412 + 131 = |
543
|
528
|
880
|
667
|