Erbijsommen t/m 1.000
Optellen
| 1. | 447 + 425 = |
751
|
872
|
677
|
979
|
| 2. | 355 + 326 = |
584
|
990
|
681
|
616
|
| 3. | 478 + 162 = |
529
|
640
|
704
|
850
|
| 4. | 278 + 276 = |
780
|
554
|
527
|
665
|
| 5. | 288 + 166 = |
464
|
455
|
454
|
471
|
| 6. | 307 + 196 = |
569
|
879
|
780
|
503
|
| 7. | 365 + 223 = |
588
|
570
|
763
|
907
|
| 8. | 493 + 354 = |
847
|
707
|
802
|
554
|
| 9. | 307 + 231 = |
583
|
829
|
837
|
538
|
| 10. | 337 + 132 = |
407
|
289
|
277
|
469
|
| 11. | 241 + 137 = |
448
|
286
|
378
|
474
|
| 12. | 259 + 162 = |
421
|
286
|
389
|
391
|