Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 750 | + | 50 | = |
|
| 2. | 280 | + | 20 | = |
|
| 3. | 970 | + | 30 | = |
|
| 4. | 540 | + | 60 | = |
|
| 5. | 220 | + | 80 | = |
|
| 6. | 920 | + | 80 | = |
|
| 7. | 480 | + | 20 | = |
|
| 8. | 250 | + | 50 | = |
|
| 9. | 390 | + | 10 | = |
|
| 10. | 520 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 720 | + | 80 | = |
|
| 2. | 910 | + | 90 | = |
|
| 3. | 220 | + | 80 | = |
|
| 4. | 110 | + | 90 | = |
|
| 5. | 270 | + | 30 | = |
|
| 6. | 960 | + | 40 | = |
|
| 7. | 940 | + | 60 | = |
|
| 8. | 640 | + | 60 | = |
|
| 9. | 110 | + | 90 | = |
|
| 10. | 830 | + | 70 | = |
|
| Oefening 3 | |||||
| 1. | 510 | + | 90 | = |
|
| 2. | 240 | + | 60 | = |
|
| 3. | 110 | + | 90 | = |
|
| 4. | 780 | + | 20 | = |
|
| 5. | 620 | + | 80 | = |
|
| 6. | 330 | + | 70 | = |
|
| 7. | 270 | + | 30 | = |
|
| 8. | 320 | + | 80 | = |
|
| 9. | 440 | + | 60 | = |
|
| 10. | 590 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 360 | + | 40 | = |
|
| 2. | 530 | + | 70 | = |
|
| 3. | 150 | + | 50 | = |
|
| 4. | 540 | + | 60 | = |
|
| 5. | 190 | + | 10 | = |
|
| 6. | 980 | + | 20 | = |
|
| 7. | 160 | + | 40 | = |
|
| 8. | 560 | + | 40 | = |
|
| 9. | 310 | + | 90 | = |
|
| 10. | 980 | + | 20 | = |
|