Erbijsommen t/m 1.000
Optellen
| 1. | 393 + 266 = |
830
|
503
|
659
|
835
|
| 2. | 374 + 354 = |
993
|
697
|
728
|
550
|
| 3. | 405 + 129 = |
579
|
820
|
534
|
831
|
| 4. | 331 + 304 = |
887
|
635
|
760
|
883
|
| 5. | 260 + 228 = |
491
|
446
|
422
|
488
|
| 6. | 484 + 336 = |
810
|
788
|
529
|
820
|
| 7. | 248 + 164 = |
412
|
481
|
404
|
333
|
| 8. | 342 + 207 = |
549
|
624
|
777
|
507
|
| 9. | 461 + 259 = |
850
|
805
|
858
|
720
|
| 10. | 388 + 175 = |
953
|
563
|
787
|
777
|
| 11. | 320 + 280 = |
983
|
600
|
757
|
704
|
| 12. | 244 + 244 = |
423
|
490
|
312
|
488
|