Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 250 | + | 80 | = |
|
| 2. | 520 | + | 90 | = |
|
| 3. | 370 | + | 40 | = |
|
| 4. | 830 | + | 90 | = |
|
| 5. | 260 | + | 60 | = |
|
| 6. | 230 | + | 90 | = |
|
| 7. | 780 | + | 40 | = |
|
| 8. | 690 | + | 80 | = |
|
| 9. | 330 | + | 60 | = |
|
| 10. | 820 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 180 | + | 10 | = |
|
| 2. | 230 | + | 70 | = |
|
| 3. | 260 | + | 50 | = |
|
| 4. | 180 | + | 30 | = |
|
| 5. | 350 | + | 50 | = |
|
| 6. | 750 | + | 90 | = |
|
| 7. | 750 | + | 60 | = |
|
| 8. | 440 | + | 80 | = |
|
| 9. | 320 | + | 90 | = |
|
| 10. | 930 | + | 60 | = |
|
| Oefening 3 | |||||
| 1. | 160 | + | 50 | = |
|
| 2. | 490 | + | 70 | = |
|
| 3. | 750 | + | 60 | = |
|
| 4. | 120 | + | 80 | = |
|
| 5. | 660 | + | 90 | = |
|
| 6. | 620 | + | 70 | = |
|
| 7. | 940 | + | 50 | = |
|
| 8. | 420 | + | 80 | = |
|
| 9. | 860 | + | 90 | = |
|
| 10. | 390 | + | 80 | = |
|
| Oefening 4 | |||||
| 1. | 140 | + | 60 | = |
|
| 2. | 220 | + | 70 | = |
|
| 3. | 450 | + | 50 | = |
|
| 4. | 450 | + | 70 | = |
|
| 5. | 320 | + | 70 | = |
|
| 6. | 940 | + | 80 | = |
|
| 7. | 790 | + | 50 | = |
|
| 8. | 810 | + | 80 | = |
|
| 9. | 520 | + | 90 | = |
|
| 10. | 770 | + | 40 | = |
|