Erbijsommen t/m 1.000
Optellen
| 1. | 355 + 115 = |
313
|
287
|
473
|
470
|
| 2. | 327 + 263 = |
658
|
834
|
590
|
537
|
| 3. | 171 + 106 = |
318
|
277
|
498
|
327
|
| 4. | 474 + 301 = |
684
|
859
|
775
|
673
|
| 5. | 357 + 253 = |
610
|
956
|
836
|
500
|
| 6. | 408 + 370 = |
895
|
900
|
778
|
683
|
| 7. | 298 + 266 = |
564
|
976
|
652
|
537
|
| 8. | 227 + 218 = |
419
|
323
|
311
|
445
|
| 9. | 385 + 317 = |
709
|
702
|
786
|
717
|
| 10. | 163 + 117 = |
301
|
264
|
482
|
280
|
| 11. | 135 + 122 = |
318
|
311
|
220
|
257
|
| 12. | 311 + 223 = |
683
|
534
|
909
|
930
|