Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 790 | + | 50 | = |
|
| 2. | 540 | + | 50 | = |
|
| 3. | 230 | + | 90 | = |
|
| 4. | 530 | + | 80 | = |
|
| 5. | 810 | + | 90 | = |
|
| 6. | 850 | + | 40 | = |
|
| 7. | 470 | + | 80 | = |
|
| 8. | 210 | + | 90 | = |
|
| 9. | 990 | + | 20 | = |
|
| 10. | 510 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 350 | + | 60 | = |
|
| 2. | 890 | + | 50 | = |
|
| 3. | 680 | + | 10 | = |
|
| 4. | 970 | + | 60 | = |
|
| 5. | 990 | + | 30 | = |
|
| 6. | 160 | + | 70 | = |
|
| 7. | 830 | + | 90 | = |
|
| 8. | 560 | + | 30 | = |
|
| 9. | 570 | + | 90 | = |
|
| 10. | 120 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 310 | + | 80 | = |
|
| 2. | 890 | + | 80 | = |
|
| 3. | 860 | + | 90 | = |
|
| 4. | 730 | + | 90 | = |
|
| 5. | 340 | + | 50 | = |
|
| 6. | 660 | + | 50 | = |
|
| 7. | 610 | + | 80 | = |
|
| 8. | 590 | + | 20 | = |
|
| 9. | 120 | + | 70 | = |
|
| 10. | 940 | + | 70 | = |
|
| Oefening 4 | |||||
| 1. | 430 | + | 90 | = |
|
| 2. | 620 | + | 80 | = |
|
| 3. | 570 | + | 90 | = |
|
| 4. | 210 | + | 80 | = |
|
| 5. | 890 | + | 20 | = |
|
| 6. | 850 | + | 90 | = |
|
| 7. | 210 | + | 90 | = |
|
| 8. | 680 | + | 10 | = |
|
| 9. | 380 | + | 90 | = |
|
| 10. | 870 | + | 50 | = |
|