Erbijsommen t/m 1.000
Optellen
| 1. | 427 + 372 = |
799
|
980
|
984
|
709
|
| 2. | 240 + 126 = |
437
|
367
|
391
|
366
|
| 3. | 290 + 217 = |
915
|
585
|
584
|
507
|
| 4. | 210 + 180 = |
307
|
330
|
492
|
390
|
| 5. | 228 + 161 = |
210
|
378
|
389
|
417
|
| 6. | 332 + 306 = |
503
|
734
|
638
|
977
|
| 7. | 271 + 266 = |
781
|
806
|
704
|
537
|
| 8. | 470 + 391 = |
922
|
941
|
861
|
548
|
| 9. | 323 + 238 = |
517
|
508
|
905
|
561
|
| 10. | 321 + 275 = |
861
|
596
|
608
|
607
|
| 11. | 496 + 310 = |
806
|
799
|
929
|
902
|
| 12. | 326 + 270 = |
977
|
902
|
596
|
734
|