Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 410 | + | 90 | = |
|
| 2. | 280 | + | 20 | = |
|
| 3. | 130 | + | 70 | = |
|
| 4. | 920 | + | 80 | = |
|
| 5. | 220 | + | 80 | = |
|
| 6. | 730 | + | 70 | = |
|
| 7. | 640 | + | 60 | = |
|
| 8. | 330 | + | 70 | = |
|
| 9. | 470 | + | 30 | = |
|
| 10. | 570 | + | 30 | = |
|
| Oefening 2 | |||||
| 1. | 760 | + | 40 | = |
|
| 2. | 420 | + | 80 | = |
|
| 3. | 620 | + | 80 | = |
|
| 4. | 760 | + | 40 | = |
|
| 5. | 530 | + | 70 | = |
|
| 6. | 210 | + | 90 | = |
|
| 7. | 910 | + | 90 | = |
|
| 8. | 810 | + | 90 | = |
|
| 9. | 630 | + | 70 | = |
|
| 10. | 360 | + | 40 | = |
|
| Oefening 3 | |||||
| 1. | 410 | + | 90 | = |
|
| 2. | 370 | + | 30 | = |
|
| 3. | 820 | + | 80 | = |
|
| 4. | 110 | + | 90 | = |
|
| 5. | 730 | + | 70 | = |
|
| 6. | 430 | + | 70 | = |
|
| 7. | 440 | + | 60 | = |
|
| 8. | 610 | + | 90 | = |
|
| 9. | 460 | + | 40 | = |
|
| 10. | 790 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 950 | + | 50 | = |
|
| 2. | 810 | + | 90 | = |
|
| 3. | 770 | + | 30 | = |
|
| 4. | 680 | + | 20 | = |
|
| 5. | 610 | + | 90 | = |
|
| 6. | 760 | + | 40 | = |
|
| 7. | 190 | + | 10 | = |
|
| 8. | 730 | + | 70 | = |
|
| 9. | 420 | + | 80 | = |
|
| 10. | 720 | + | 80 | = |
|