Erbijsommen t/m 1.000
Optellen
| 1. | 396 + 316 = |
712
|
740
|
959
|
521
|
| 2. | 432 + 164 = |
574
|
549
|
596
|
516
|
| 3. | 456 + 325 = |
656
|
781
|
653
|
519
|
| 4. | 492 + 401 = |
893
|
589
|
515
|
985
|
| 5. | 430 + 408 = |
838
|
654
|
804
|
710
|
| 6. | 399 + 222 = |
678
|
597
|
921
|
621
|
| 7. | 252 + 214 = |
266
|
264
|
390
|
466
|
| 8. | 415 + 311 = |
883
|
658
|
726
|
774
|
| 9. | 336 + 194 = |
608
|
530
|
953
|
892
|
| 10. | 471 + 248 = |
583
|
756
|
604
|
719
|
| 11. | 424 + 133 = |
627
|
959
|
991
|
557
|
| 12. | 399 + 387 = |
794
|
786
|
999
|
979
|