Erbijsommen t/m 1.000
Optellen
| 1. | 417 + 373 = |
961
|
550
|
936
|
790
|
| 2. | 179 + 125 = |
447
|
304
|
245
|
356
|
| 3. | 254 + 207 = |
485
|
228
|
257
|
461
|
| 4. | 398 + 341 = |
841
|
883
|
933
|
739
|
| 5. | 336 + 259 = |
730
|
540
|
595
|
580
|
| 6. | 290 + 240 = |
968
|
994
|
768
|
530
|
| 7. | 324 + 257 = |
981
|
581
|
784
|
547
|
| 8. | 471 + 467 = |
938
|
920
|
862
|
604
|
| 9. | 391 + 197 = |
778
|
588
|
749
|
801
|
| 10. | 193 + 159 = |
267
|
289
|
282
|
352
|
| 11. | 271 + 164 = |
435
|
428
|
385
|
453
|
| 12. | 424 + 276 = |
564
|
572
|
990
|
700
|