Erbijsommen t/m 1.000
Optellen
| 1. | 231 + 122 = |
353
|
374
|
269
|
478
|
| 2. | 433 + 382 = |
582
|
789
|
547
|
815
|
| 3. | 381 + 245 = |
515
|
583
|
509
|
626
|
| 4. | 321 + 109 = |
257
|
452
|
430
|
408
|
| 5. | 441 + 122 = |
596
|
937
|
563
|
746
|
| 6. | 391 + 288 = |
948
|
623
|
679
|
686
|
| 7. | 360 + 349 = |
515
|
967
|
911
|
709
|
| 8. | 478 + 220 = |
941
|
750
|
917
|
698
|
| 9. | 336 + 231 = |
570
|
567
|
611
|
645
|
| 10. | 170 + 122 = |
229
|
398
|
292
|
449
|
| 11. | 475 + 343 = |
694
|
846
|
818
|
844
|
| 12. | 398 + 102 = |
500
|
206
|
225
|
285
|