Erbijsommen t/m 1.000
Optellen
| 1. | 473 + 304 = |
958
|
902
|
823
|
777
|
| 2. | 240 + 161 = |
401
|
213
|
375
|
422
|
| 3. | 480 + 383 = |
830
|
750
|
863
|
821
|
| 4. | 453 + 421 = |
874
|
801
|
527
|
530
|
| 5. | 313 + 112 = |
429
|
253
|
365
|
425
|
| 6. | 408 + 294 = |
659
|
970
|
702
|
887
|
| 7. | 445 + 348 = |
825
|
854
|
793
|
779
|
| 8. | 497 + 458 = |
955
|
658
|
558
|
583
|
| 9. | 235 + 128 = |
472
|
363
|
480
|
225
|
| 10. | 180 + 139 = |
319
|
355
|
344
|
270
|
| 11. | 156 + 133 = |
272
|
289
|
238
|
379
|
| 12. | 473 + 189 = |
693
|
592
|
662
|
820
|