Erbijsommen t/m 1.000
Optellen
| 1. | 173 + 143 = |
296
|
372
|
263
|
316
|
| 2. | 459 + 185 = |
644
|
752
|
835
|
563
|
| 3. | 259 + 142 = |
288
|
452
|
401
|
429
|
| 4. | 411 + 398 = |
831
|
533
|
809
|
936
|
| 5. | 481 + 256 = |
565
|
737
|
713
|
731
|
| 6. | 480 + 419 = |
513
|
910
|
905
|
899
|
| 7. | 454 + 111 = |
765
|
857
|
565
|
596
|
| 8. | 387 + 310 = |
557
|
669
|
617
|
697
|
| 9. | 307 + 249 = |
556
|
943
|
960
|
513
|
| 10. | 288 + 156 = |
444
|
218
|
387
|
451
|
| 11. | 409 + 408 = |
972
|
855
|
817
|
867
|
| 12. | 422 + 249 = |
661
|
506
|
671
|
723
|