Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 620 | + | 80 | = |
|
| 2. | 540 | + | 60 | = |
|
| 3. | 540 | + | 60 | = |
|
| 4. | 230 | + | 70 | = |
|
| 5. | 810 | + | 90 | = |
|
| 6. | 630 | + | 70 | = |
|
| 7. | 220 | + | 80 | = |
|
| 8. | 520 | + | 80 | = |
|
| 9. | 180 | + | 20 | = |
|
| 10. | 230 | + | 70 | = |
|
| Oefening 2 | |||||
| 1. | 630 | + | 70 | = |
|
| 2. | 920 | + | 80 | = |
|
| 3. | 620 | + | 80 | = |
|
| 4. | 580 | + | 20 | = |
|
| 5. | 430 | + | 70 | = |
|
| 6. | 910 | + | 90 | = |
|
| 7. | 260 | + | 40 | = |
|
| 8. | 720 | + | 80 | = |
|
| 9. | 850 | + | 50 | = |
|
| 10. | 650 | + | 50 | = |
|
| Oefening 3 | |||||
| 1. | 320 | + | 80 | = |
|
| 2. | 710 | + | 90 | = |
|
| 3. | 810 | + | 90 | = |
|
| 4. | 380 | + | 20 | = |
|
| 5. | 670 | + | 30 | = |
|
| 6. | 310 | + | 90 | = |
|
| 7. | 430 | + | 70 | = |
|
| 8. | 850 | + | 50 | = |
|
| 9. | 550 | + | 50 | = |
|
| 10. | 570 | + | 30 | = |
|
| Oefening 4 | |||||
| 1. | 620 | + | 80 | = |
|
| 2. | 650 | + | 50 | = |
|
| 3. | 170 | + | 30 | = |
|
| 4. | 620 | + | 80 | = |
|
| 5. | 790 | + | 10 | = |
|
| 6. | 920 | + | 80 | = |
|
| 7. | 810 | + | 90 | = |
|
| 8. | 650 | + | 50 | = |
|
| 9. | 960 | + | 40 | = |
|
| 10. | 960 | + | 40 | = |
|