Erbijsommen t/m 1.000
Optellen
| 1. | 307 + 203 = |
810
|
835
|
683
|
510
|
| 2. | 354 + 345 = |
633
|
881
|
871
|
699
|
| 3. | 148 + 120 = |
260
|
410
|
333
|
268
|
| 4. | 172 + 109 = |
256
|
441
|
285
|
281
|
| 5. | 403 + 369 = |
776
|
933
|
772
|
960
|
| 6. | 238 + 210 = |
269
|
383
|
466
|
448
|
| 7. | 458 + 137 = |
595
|
909
|
641
|
598
|
| 8. | 331 + 242 = |
739
|
573
|
914
|
906
|
| 9. | 252 + 163 = |
415
|
496
|
263
|
264
|
| 10. | 486 + 446 = |
580
|
932
|
725
|
971
|
| 11. | 181 + 171 = |
456
|
249
|
352
|
240
|
| 12. | 485 + 284 = |
509
|
514
|
895
|
769
|