Erbijsommen t/m 1.000
Optellen
| 1. | 489 + 385 = |
711
|
874
|
617
|
976
|
| 2. | 408 + 278 = |
995
|
686
|
715
|
839
|
| 3. | 244 + 225 = |
438
|
279
|
245
|
469
|
| 4. | 476 + 470 = |
698
|
795
|
875
|
946
|
| 5. | 457 + 298 = |
568
|
949
|
939
|
755
|
| 6. | 367 + 234 = |
631
|
601
|
630
|
924
|
| 7. | 242 + 237 = |
346
|
282
|
479
|
288
|
| 8. | 475 + 377 = |
921
|
604
|
661
|
852
|
| 9. | 477 + 404 = |
881
|
641
|
845
|
678
|
| 10. | 352 + 340 = |
772
|
591
|
692
|
645
|
| 11. | 230 + 144 = |
374
|
429
|
235
|
220
|
| 12. | 336 + 203 = |
928
|
582
|
974
|
539
|