Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 670 | + | 30 | = |
|
| 2. | 190 | + | 10 | = |
|
| 3. | 350 | + | 50 | = |
|
| 4. | 770 | + | 30 | = |
|
| 5. | 340 | + | 60 | = |
|
| 6. | 860 | + | 40 | = |
|
| 7. | 530 | + | 70 | = |
|
| 8. | 390 | + | 10 | = |
|
| 9. | 380 | + | 20 | = |
|
| 10. | 550 | + | 50 | = |
|
| Oefening 2 | |||||
| 1. | 470 | + | 30 | = |
|
| 2. | 830 | + | 70 | = |
|
| 3. | 330 | + | 70 | = |
|
| 4. | 760 | + | 40 | = |
|
| 5. | 780 | + | 20 | = |
|
| 6. | 270 | + | 30 | = |
|
| 7. | 450 | + | 50 | = |
|
| 8. | 820 | + | 80 | = |
|
| 9. | 950 | + | 50 | = |
|
| 10. | 270 | + | 30 | = |
|
| Oefening 3 | |||||
| 1. | 930 | + | 70 | = |
|
| 2. | 740 | + | 60 | = |
|
| 3. | 460 | + | 40 | = |
|
| 4. | 380 | + | 20 | = |
|
| 5. | 330 | + | 70 | = |
|
| 6. | 410 | + | 90 | = |
|
| 7. | 510 | + | 90 | = |
|
| 8. | 570 | + | 30 | = |
|
| 9. | 890 | + | 10 | = |
|
| 10. | 320 | + | 80 | = |
|
| Oefening 4 | |||||
| 1. | 730 | + | 70 | = |
|
| 2. | 480 | + | 20 | = |
|
| 3. | 350 | + | 50 | = |
|
| 4. | 220 | + | 80 | = |
|
| 5. | 770 | + | 30 | = |
|
| 6. | 490 | + | 10 | = |
|
| 7. | 820 | + | 80 | = |
|
| 8. | 250 | + | 50 | = |
|
| 9. | 440 | + | 60 | = |
|
| 10. | 890 | + | 10 | = |
|