Erbijsommen t/m 1.000
Optellen
| 1. | 489 + 423 = |
672
|
912
|
514
|
639
|
| 2. | 411 + 289 = |
571
|
700
|
626
|
768
|
| 3. | 367 + 244 = |
611
|
935
|
837
|
623
|
| 4. | 444 + 309 = |
687
|
753
|
832
|
797
|
| 5. | 402 + 125 = |
630
|
824
|
662
|
527
|
| 6. | 387 + 336 = |
732
|
596
|
723
|
858
|
| 7. | 333 + 145 = |
237
|
478
|
382
|
317
|
| 8. | 409 + 206 = |
615
|
783
|
617
|
653
|
| 9. | 451 + 147 = |
598
|
696
|
519
|
944
|
| 10. | 305 + 234 = |
539
|
796
|
728
|
829
|
| 11. | 419 + 152 = |
556
|
571
|
671
|
583
|
| 12. | 455 + 247 = |
668
|
966
|
935
|
702
|