Erbijsommen t/m 1.000
Optellen
| 1. | 494 + 492 = |
531
|
625
|
986
|
543
|
| 2. | 492 + 375 = |
867
|
736
|
517
|
919
|
| 3. | 435 + 143 = |
578
|
672
|
955
|
579
|
| 4. | 349 + 148 = |
349
|
497
|
222
|
473
|
| 5. | 414 + 132 = |
506
|
546
|
954
|
653
|
| 6. | 418 + 304 = |
953
|
722
|
545
|
746
|
| 7. | 364 + 221 = |
963
|
784
|
686
|
585
|
| 8. | 220 + 208 = |
288
|
428
|
304
|
364
|
| 9. | 332 + 324 = |
843
|
656
|
778
|
902
|
| 10. | 304 + 228 = |
611
|
558
|
730
|
532
|
| 11. | 481 + 390 = |
520
|
928
|
993
|
871
|
| 12. | 473 + 449 = |
736
|
922
|
510
|
634
|