Erbijsommen t/m 1.000
Optellen
| 1. | 156 + 127 = |
280
|
283
|
471
|
396
|
| 2. | 408 + 370 = |
577
|
702
|
764
|
778
|
| 3. | 472 + 110 = |
875
|
582
|
939
|
818
|
| 4. | 256 + 131 = |
449
|
444
|
387
|
246
|
| 5. | 414 + 293 = |
802
|
589
|
838
|
707
|
| 6. | 473 + 233 = |
910
|
706
|
670
|
935
|
| 7. | 444 + 416 = |
860
|
865
|
917
|
512
|
| 8. | 308 + 162 = |
470
|
439
|
391
|
339
|
| 9. | 339 + 209 = |
548
|
886
|
866
|
959
|
| 10. | 467 + 245 = |
848
|
819
|
813
|
712
|
| 11. | 431 + 374 = |
805
|
664
|
869
|
522
|
| 12. | 469 + 400 = |
582
|
696
|
971
|
869
|