Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 740 | + | 60 | = |
|
| 2. | 120 | + | 80 | = |
|
| 3. | 890 | + | 10 | = |
|
| 4. | 860 | + | 40 | = |
|
| 5. | 350 | + | 50 | = |
|
| 6. | 730 | + | 70 | = |
|
| 7. | 840 | + | 60 | = |
|
| 8. | 590 | + | 10 | = |
|
| 9. | 160 | + | 40 | = |
|
| 10. | 220 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 640 | + | 60 | = |
|
| 2. | 890 | + | 10 | = |
|
| 3. | 620 | + | 80 | = |
|
| 4. | 740 | + | 60 | = |
|
| 5. | 770 | + | 30 | = |
|
| 6. | 560 | + | 40 | = |
|
| 7. | 580 | + | 20 | = |
|
| 8. | 590 | + | 10 | = |
|
| 9. | 730 | + | 70 | = |
|
| 10. | 820 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 350 | + | 50 | = |
|
| 2. | 760 | + | 40 | = |
|
| 3. | 770 | + | 30 | = |
|
| 4. | 240 | + | 60 | = |
|
| 5. | 210 | + | 90 | = |
|
| 6. | 320 | + | 80 | = |
|
| 7. | 570 | + | 30 | = |
|
| 8. | 180 | + | 20 | = |
|
| 9. | 360 | + | 40 | = |
|
| 10. | 310 | + | 90 | = |
|
| Oefening 4 | |||||
| 1. | 620 | + | 80 | = |
|
| 2. | 590 | + | 10 | = |
|
| 3. | 210 | + | 90 | = |
|
| 4. | 310 | + | 90 | = |
|
| 5. | 490 | + | 10 | = |
|
| 6. | 680 | + | 20 | = |
|
| 7. | 630 | + | 70 | = |
|
| 8. | 290 | + | 10 | = |
|
| 9. | 520 | + | 80 | = |
|
| 10. | 350 | + | 50 | = |
|