Erbijsommen t/m 1.000
Optellen
| 1. | 177 + 127 = |
490
|
257
|
304
|
270
|
| 2. | 443 + 145 = |
588
|
633
|
822
|
884
|
| 3. | 335 + 276 = |
549
|
640
|
611
|
865
|
| 4. | 158 + 103 = |
204
|
261
|
478
|
455
|
| 5. | 258 + 189 = |
420
|
447
|
425
|
428
|
| 6. | 465 + 448 = |
851
|
539
|
913
|
517
|
| 7. | 235 + 198 = |
349
|
365
|
312
|
433
|
| 8. | 430 + 371 = |
540
|
801
|
683
|
791
|
| 9. | 315 + 300 = |
615
|
912
|
608
|
692
|
| 10. | 303 + 225 = |
528
|
990
|
805
|
836
|
| 11. | 136 + 111 = |
422
|
448
|
247
|
307
|
| 12. | 375 + 346 = |
873
|
687
|
854
|
721
|