Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 570 | + | 30 | = |
|
| 2. | 760 | + | 40 | = |
|
| 3. | 730 | + | 70 | = |
|
| 4. | 820 | + | 80 | = |
|
| 5. | 880 | + | 20 | = |
|
| 6. | 350 | + | 50 | = |
|
| 7. | 340 | + | 60 | = |
|
| 8. | 460 | + | 40 | = |
|
| 9. | 870 | + | 30 | = |
|
| 10. | 940 | + | 60 | = |
|
| Oefening 2 | |||||
| 1. | 390 | + | 10 | = |
|
| 2. | 490 | + | 10 | = |
|
| 3. | 190 | + | 10 | = |
|
| 4. | 730 | + | 70 | = |
|
| 5. | 340 | + | 60 | = |
|
| 6. | 330 | + | 70 | = |
|
| 7. | 420 | + | 80 | = |
|
| 8. | 540 | + | 60 | = |
|
| 9. | 780 | + | 20 | = |
|
| 10. | 840 | + | 60 | = |
|
| Oefening 3 | |||||
| 1. | 450 | + | 50 | = |
|
| 2. | 840 | + | 60 | = |
|
| 3. | 910 | + | 90 | = |
|
| 4. | 490 | + | 10 | = |
|
| 5. | 260 | + | 40 | = |
|
| 6. | 230 | + | 70 | = |
|
| 7. | 440 | + | 60 | = |
|
| 8. | 310 | + | 90 | = |
|
| 9. | 120 | + | 80 | = |
|
| 10. | 290 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 960 | + | 40 | = |
|
| 2. | 140 | + | 60 | = |
|
| 3. | 230 | + | 70 | = |
|
| 4. | 760 | + | 40 | = |
|
| 5. | 960 | + | 40 | = |
|
| 6. | 530 | + | 70 | = |
|
| 7. | 640 | + | 60 | = |
|
| 8. | 430 | + | 70 | = |
|
| 9. | 390 | + | 10 | = |
|
| 10. | 670 | + | 30 | = |
|