Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 210 | + | 90 | = |
|
| 2. | 660 | + | 50 | = |
|
| 3. | 350 | + | 80 | = |
|
| 4. | 640 | + | 70 | = |
|
| 5. | 430 | + | 70 | = |
|
| 6. | 230 | + | 70 | = |
|
| 7. | 720 | + | 90 | = |
|
| 8. | 520 | + | 90 | = |
|
| 9. | 380 | + | 50 | = |
|
| 10. | 570 | + | 20 | = |
|
| Oefening 2 | |||||
| 1. | 290 | + | 30 | = |
|
| 2. | 750 | + | 50 | = |
|
| 3. | 360 | + | 40 | = |
|
| 4. | 530 | + | 60 | = |
|
| 5. | 670 | + | 20 | = |
|
| 6. | 570 | + | 70 | = |
|
| 7. | 440 | + | 70 | = |
|
| 8. | 840 | + | 60 | = |
|
| 9. | 880 | + | 30 | = |
|
| 10. | 580 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 460 | + | 80 | = |
|
| 2. | 370 | + | 70 | = |
|
| 3. | 840 | + | 70 | = |
|
| 4. | 680 | + | 20 | = |
|
| 5. | 380 | + | 80 | = |
|
| 6. | 480 | + | 80 | = |
|
| 7. | 730 | + | 60 | = |
|
| 8. | 690 | + | 00 | = |
|
| 9. | 260 | + | 90 | = |
|
| 10. | 380 | + | 70 | = |
|
| Oefening 4 | |||||
| 1. | 640 | + | 50 | = |
|
| 2. | 180 | + | 20 | = |
|
| 3. | 420 | + | 90 | = |
|
| 4. | 350 | + | 70 | = |
|
| 5. | 850 | + | 50 | = |
|
| 6. | 220 | + | 70 | = |
|
| 7. | 520 | + | 70 | = |
|
| 8. | 540 | + | 90 | = |
|
| 9. | 870 | + | 20 | = |
|
| 10. | 650 | + | 50 | = |
|