Erbijsommen t/m 1.000
Optellen
| 1. | 422 + 100 = |
522
|
878
|
913
|
552
|
| 2. | 453 + 409 = |
862
|
690
|
851
|
729
|
| 3. | 495 + 388 = |
883
|
573
|
614
|
955
|
| 4. | 489 + 375 = |
569
|
606
|
525
|
864
|
| 5. | 448 + 155 = |
508
|
721
|
665
|
603
|
| 6. | 277 + 151 = |
244
|
230
|
216
|
428
|
| 7. | 439 + 302 = |
928
|
594
|
741
|
864
|
| 8. | 374 + 123 = |
353
|
365
|
497
|
399
|
| 9. | 448 + 322 = |
770
|
587
|
645
|
979
|
| 10. | 262 + 250 = |
818
|
935
|
512
|
762
|
| 11. | 452 + 113 = |
920
|
687
|
888
|
565
|
| 12. | 352 + 198 = |
550
|
682
|
838
|
677
|