Erbijsommen t/m 1.000
Optellen
| 1. | 222 + 205 = |
368
|
271
|
427
|
403
|
| 2. | 473 + 326 = |
901
|
799
|
835
|
878
|
| 3. | 213 + 121 = |
334
|
233
|
412
|
317
|
| 4. | 487 + 455 = |
610
|
916
|
591
|
942
|
| 5. | 370 + 260 = |
756
|
619
|
630
|
656
|
| 6. | 442 + 214 = |
737
|
825
|
656
|
645
|
| 7. | 321 + 229 = |
687
|
931
|
550
|
819
|
| 8. | 357 + 258 = |
690
|
615
|
651
|
504
|
| 9. | 165 + 156 = |
353
|
362
|
257
|
321
|
| 10. | 144 + 110 = |
254
|
204
|
456
|
386
|
| 11. | 413 + 238 = |
693
|
633
|
923
|
651
|
| 12. | 421 + 399 = |
625
|
795
|
820
|
645
|