Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 470 | + | 70 | = |
|
| 2. | 850 | + | 90 | = |
|
| 3. | 290 | + | 10 | = |
|
| 4. | 650 | + | 90 | = |
|
| 5. | 480 | + | 90 | = |
|
| 6. | 860 | + | 80 | = |
|
| 7. | 290 | + | 50 | = |
|
| 8. | 830 | + | 70 | = |
|
| 9. | 460 | + | 60 | = |
|
| 10. | 350 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 960 | + | 80 | = |
|
| 2. | 470 | + | 50 | = |
|
| 3. | 190 | + | 50 | = |
|
| 4. | 360 | + | 50 | = |
|
| 5. | 130 | + | 70 | = |
|
| 6. | 530 | + | 60 | = |
|
| 7. | 580 | + | 10 | = |
|
| 8. | 410 | + | 80 | = |
|
| 9. | 440 | + | 80 | = |
|
| 10. | 710 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 190 | + | 20 | = |
|
| 2. | 460 | + | 70 | = |
|
| 3. | 180 | + | 30 | = |
|
| 4. | 230 | + | 90 | = |
|
| 5. | 620 | + | 80 | = |
|
| 6. | 720 | + | 90 | = |
|
| 7. | 730 | + | 60 | = |
|
| 8. | 140 | + | 60 | = |
|
| 9. | 280 | + | 80 | = |
|
| 10. | 650 | + | 40 | = |
|
| Oefening 4 | |||||
| 1. | 620 | + | 90 | = |
|
| 2. | 780 | + | 40 | = |
|
| 3. | 620 | + | 90 | = |
|
| 4. | 650 | + | 90 | = |
|
| 5. | 520 | + | 70 | = |
|
| 6. | 260 | + | 90 | = |
|
| 7. | 510 | + | 90 | = |
|
| 8. | 850 | + | 50 | = |
|
| 9. | 470 | + | 30 | = |
|
| 10. | 570 | + | 40 | = |
|