Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 670 | + | 50 | = |
|
| 2. | 730 | + | 70 | = |
|
| 3. | 860 | + | 90 | = |
|
| 4. | 830 | + | 60 | = |
|
| 5. | 850 | + | 90 | = |
|
| 6. | 670 | + | 40 | = |
|
| 7. | 540 | + | 80 | = |
|
| 8. | 180 | + | 50 | = |
|
| 9. | 830 | + | 60 | = |
|
| 10. | 220 | + | 70 | = |
|
| Oefening 2 | |||||
| 1. | 950 | + | 70 | = |
|
| 2. | 920 | + | 80 | = |
|
| 3. | 230 | + | 90 | = |
|
| 4. | 320 | + | 90 | = |
|
| 5. | 380 | + | 20 | = |
|
| 6. | 250 | + | 40 | = |
|
| 7. | 140 | + | 50 | = |
|
| 8. | 350 | + | 80 | = |
|
| 9. | 950 | + | 50 | = |
|
| 10. | 990 | + | 20 | = |
|
| Oefening 3 | |||||
| 1. | 530 | + | 90 | = |
|
| 2. | 570 | + | 70 | = |
|
| 3. | 820 | + | 70 | = |
|
| 4. | 680 | + | 40 | = |
|
| 5. | 420 | + | 80 | = |
|
| 6. | 460 | + | 60 | = |
|
| 7. | 750 | + | 70 | = |
|
| 8. | 190 | + | 90 | = |
|
| 9. | 640 | + | 60 | = |
|
| 10. | 660 | + | 30 | = |
|
| Oefening 4 | |||||
| 1. | 870 | + | 80 | = |
|
| 2. | 430 | + | 80 | = |
|
| 3. | 650 | + | 70 | = |
|
| 4. | 930 | + | 80 | = |
|
| 5. | 590 | + | 40 | = |
|
| 6. | 360 | + | 90 | = |
|
| 7. | 880 | + | 40 | = |
|
| 8. | 460 | + | 90 | = |
|
| 9. | 590 | + | 70 | = |
|
| 10. | 560 | + | 90 | = |
|