Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 440 | + | 60 | = |
|
| 2. | 130 | + | 70 | = |
|
| 3. | 510 | + | 90 | = |
|
| 4. | 820 | + | 80 | = |
|
| 5. | 840 | + | 60 | = |
|
| 6. | 810 | + | 90 | = |
|
| 7. | 960 | + | 40 | = |
|
| 8. | 840 | + | 60 | = |
|
| 9. | 380 | + | 20 | = |
|
| 10. | 590 | + | 10 | = |
|
| Oefening 2 | |||||
| 1. | 420 | + | 80 | = |
|
| 2. | 660 | + | 40 | = |
|
| 3. | 480 | + | 20 | = |
|
| 4. | 490 | + | 10 | = |
|
| 5. | 340 | + | 60 | = |
|
| 6. | 180 | + | 20 | = |
|
| 7. | 410 | + | 90 | = |
|
| 8. | 540 | + | 60 | = |
|
| 9. | 250 | + | 50 | = |
|
| 10. | 240 | + | 60 | = |
|
| Oefening 3 | |||||
| 1. | 130 | + | 70 | = |
|
| 2. | 710 | + | 90 | = |
|
| 3. | 240 | + | 60 | = |
|
| 4. | 820 | + | 80 | = |
|
| 5. | 750 | + | 50 | = |
|
| 6. | 110 | + | 90 | = |
|
| 7. | 980 | + | 20 | = |
|
| 8. | 110 | + | 90 | = |
|
| 9. | 630 | + | 70 | = |
|
| 10. | 390 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 260 | + | 40 | = |
|
| 2. | 340 | + | 60 | = |
|
| 3. | 330 | + | 70 | = |
|
| 4. | 460 | + | 40 | = |
|
| 5. | 820 | + | 80 | = |
|
| 6. | 350 | + | 50 | = |
|
| 7. | 830 | + | 70 | = |
|
| 8. | 960 | + | 40 | = |
|
| 9. | 360 | + | 40 | = |
|
| 10. | 980 | + | 20 | = |
|