Erbijsommen t/m 1.000
Optellen
| 1. | 433 + 291 = |
724
|
666
|
700
|
744
|
| 2. | 228 + 189 = |
486
|
417
|
405
|
435
|
| 3. | 390 + 144 = |
519
|
722
|
534
|
563
|
| 4. | 205 + 170 = |
386
|
237
|
485
|
375
|
| 5. | 482 + 165 = |
647
|
791
|
539
|
669
|
| 6. | 493 + 346 = |
723
|
536
|
839
|
553
|
| 7. | 432 + 423 = |
582
|
590
|
530
|
855
|
| 8. | 444 + 126 = |
570
|
922
|
872
|
635
|
| 9. | 225 + 136 = |
306
|
264
|
261
|
361
|
| 10. | 417 + 394 = |
811
|
848
|
992
|
842
|
| 11. | 488 + 300 = |
644
|
788
|
513
|
987
|
| 12. | 287 + 142 = |
429
|
210
|
270
|
495
|