Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 540 | + | 50 | = |
|
| 2. | 420 | + | 90 | = |
|
| 3. | 640 | + | 70 | = |
|
| 4. | 520 | + | 70 | = |
|
| 5. | 290 | + | 60 | = |
|
| 6. | 520 | + | 90 | = |
|
| 7. | 440 | + | 80 | = |
|
| 8. | 130 | + | 80 | = |
|
| 9. | 350 | + | 70 | = |
|
| 10. | 680 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 180 | + | 60 | = |
|
| 2. | 460 | + | 30 | = |
|
| 3. | 750 | + | 40 | = |
|
| 4. | 420 | + | 90 | = |
|
| 5. | 390 | + | 40 | = |
|
| 6. | 460 | + | 60 | = |
|
| 7. | 830 | + | 70 | = |
|
| 8. | 370 | + | 40 | = |
|
| 9. | 610 | + | 80 | = |
|
| 10. | 740 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 290 | + | 50 | = |
|
| 2. | 450 | + | 60 | = |
|
| 3. | 140 | + | 90 | = |
|
| 4. | 610 | + | 90 | = |
|
| 5. | 430 | + | 80 | = |
|
| 6. | 460 | + | 70 | = |
|
| 7. | 430 | + | 90 | = |
|
| 8. | 290 | + | 0 | = |
|
| 9. | 690 | + | 70 | = |
|
| 10. | 180 | + | 50 | = |
|
| Oefening 4 | |||||
| 1. | 250 | + | 40 | = |
|
| 2. | 910 | + | 90 | = |
|
| 3. | 420 | + | 90 | = |
|
| 4. | 320 | + | 90 | = |
|
| 5. | 670 | + | 40 | = |
|
| 6. | 550 | + | 70 | = |
|
| 7. | 820 | + | 80 | = |
|
| 8. | 730 | + | 90 | = |
|
| 9. | 930 | + | 80 | = |
|
| 10. | 680 | + | 20 | = |
|