Erbijsommen t/m 1.000
Optellen
| 1. | 489 + 268 = |
743
|
948
|
661
|
757
|
| 2. | 494 + 351 = |
835
|
845
|
732
|
515
|
| 3. | 450 + 110 = |
927
|
534
|
560
|
893
|
| 4. | 411 + 122 = |
533
|
931
|
726
|
856
|
| 5. | 322 + 281 = |
774
|
738
|
725
|
603
|
| 6. | 243 + 119 = |
362
|
304
|
256
|
258
|
| 7. | 473 + 436 = |
807
|
534
|
909
|
709
|
| 8. | 356 + 132 = |
488
|
221
|
304
|
277
|
| 9. | 369 + 215 = |
584
|
998
|
950
|
666
|
| 10. | 286 + 158 = |
257
|
444
|
340
|
422
|
| 11. | 482 + 422 = |
904
|
545
|
895
|
956
|
| 12. | 438 + 104 = |
744
|
557
|
539
|
542
|