Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 190 | + | 10 | = |
|
| 2. | 310 | + | 90 | = |
|
| 3. | 850 | + | 50 | = |
|
| 4. | 340 | + | 60 | = |
|
| 5. | 940 | + | 60 | = |
|
| 6. | 750 | + | 50 | = |
|
| 7. | 250 | + | 50 | = |
|
| 8. | 360 | + | 40 | = |
|
| 9. | 160 | + | 40 | = |
|
| 10. | 710 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 470 | + | 30 | = |
|
| 2. | 430 | + | 70 | = |
|
| 3. | 980 | + | 20 | = |
|
| 4. | 760 | + | 40 | = |
|
| 5. | 420 | + | 80 | = |
|
| 6. | 210 | + | 90 | = |
|
| 7. | 620 | + | 80 | = |
|
| 8. | 920 | + | 80 | = |
|
| 9. | 180 | + | 20 | = |
|
| 10. | 210 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 460 | + | 40 | = |
|
| 2. | 250 | + | 50 | = |
|
| 3. | 220 | + | 80 | = |
|
| 4. | 350 | + | 50 | = |
|
| 5. | 640 | + | 60 | = |
|
| 6. | 210 | + | 90 | = |
|
| 7. | 110 | + | 90 | = |
|
| 8. | 420 | + | 80 | = |
|
| 9. | 560 | + | 40 | = |
|
| 10. | 330 | + | 70 | = |
|
| Oefening 4 | |||||
| 1. | 320 | + | 80 | = |
|
| 2. | 880 | + | 20 | = |
|
| 3. | 610 | + | 90 | = |
|
| 4. | 430 | + | 70 | = |
|
| 5. | 810 | + | 90 | = |
|
| 6. | 610 | + | 90 | = |
|
| 7. | 380 | + | 20 | = |
|
| 8. | 820 | + | 80 | = |
|
| 9. | 740 | + | 60 | = |
|
| 10. | 170 | + | 30 | = |
|