Erbijsommen t/m 1.000
Optellen
| 1. | 323 + 308 = |
933
|
785
|
631
|
602
|
| 2. | 366 + 285 = |
651
|
824
|
767
|
672
|
| 3. | 490 + 460 = |
938
|
950
|
881
|
645
|
| 4. | 322 + 147 = |
337
|
469
|
475
|
265
|
| 5. | 138 + 111 = |
304
|
431
|
275
|
249
|
| 6. | 477 + 434 = |
911
|
942
|
899
|
790
|
| 7. | 491 + 209 = |
712
|
923
|
861
|
700
|
| 8. | 297 + 223 = |
937
|
974
|
566
|
520
|
| 9. | 448 + 327 = |
880
|
973
|
775
|
842
|
| 10. | 345 + 125 = |
470
|
352
|
397
|
333
|
| 11. | 494 + 436 = |
649
|
930
|
827
|
546
|
| 12. | 463 + 271 = |
798
|
520
|
734
|
636
|