Met tientallen over het honderdtal
Optellen
| Oefening 1 | |||||
| 1. | 820 | + | 80 | = |
|
| 2. | 280 | + | 20 | = |
|
| 3. | 210 | + | 90 | = |
|
| 4. | 890 | + | 80 | = |
|
| 5. | 330 | + | 90 | = |
|
| 6. | 240 | + | 90 | = |
|
| 7. | 790 | + | 0 | = |
|
| 8. | 490 | + | 10 | = |
|
| 9. | 660 | + | 60 | = |
|
| 10. | 610 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 220 | + | 70 | = |
|
| 2. | 830 | + | 70 | = |
|
| 3. | 330 | + | 80 | = |
|
| 4. | 370 | + | 40 | = |
|
| 5. | 820 | + | 70 | = |
|
| 6. | 190 | + | 80 | = |
|
| 7. | 990 | + | 40 | = |
|
| 8. | 740 | + | 60 | = |
|
| 9. | 660 | + | 60 | = |
|
| 10. | 910 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 630 | + | 90 | = |
|
| 2. | 980 | + | 30 | = |
|
| 3. | 930 | + | 70 | = |
|
| 4. | 140 | + | 80 | = |
|
| 5. | 430 | + | 60 | = |
|
| 6. | 730 | + | 80 | = |
|
| 7. | 540 | + | 90 | = |
|
| 8. | 590 | + | 40 | = |
|
| 9. | 190 | + | 60 | = |
|
| 10. | 310 | + | 80 | = |
|
| Oefening 4 | |||||
| 1. | 890 | + | 90 | = |
|
| 2. | 230 | + | 90 | = |
|
| 3. | 460 | + | 40 | = |
|
| 4. | 880 | + | 80 | = |
|
| 5. | 740 | + | 60 | = |
|
| 6. | 870 | + | 90 | = |
|
| 7. | 770 | + | 70 | = |
|
| 8. | 410 | + | 80 | = |
|
| 9. | 280 | + | 80 | = |
|
| 10. | 370 | + | 30 | = |
|