Erbijsommen t/m 1.000
Optellen
| 1. | 329 + 286 = |
813
|
619
|
615
|
692
|
| 2. | 465 + 252 = |
717
|
894
|
846
|
531
|
| 3. | 245 + 138 = |
225
|
302
|
383
|
311
|
| 4. | 290 + 271 = |
704
|
870
|
561
|
900
|
| 5. | 460 + 393 = |
584
|
853
|
947
|
877
|
| 6. | 479 + 414 = |
893
|
750
|
641
|
538
|
| 7. | 355 + 181 = |
911
|
972
|
536
|
983
|
| 8. | 305 + 191 = |
378
|
496
|
320
|
225
|
| 9. | 428 + 146 = |
574
|
932
|
626
|
832
|
| 10. | 333 + 273 = |
652
|
678
|
606
|
728
|
| 11. | 346 + 277 = |
946
|
623
|
591
|
907
|
| 12. | 498 + 195 = |
776
|
693
|
648
|
767
|