Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 420 | + | 80 | = |
|
| 2. | 530 | + | 80 | = |
|
| 3. | 650 | + | 60 | = |
|
| 4. | 270 | + | 80 | = |
|
| 5. | 360 | + | 70 | = |
|
| 6. | 890 | + | 0 | = |
|
| 7. | 590 | + | 50 | = |
|
| 8. | 730 | + | 60 | = |
|
| 9. | 240 | + | 80 | = |
|
| 10. | 220 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 740 | + | 80 | = |
|
| 2. | 470 | + | 70 | = |
|
| 3. | 850 | + | 90 | = |
|
| 4. | 850 | + | 50 | = |
|
| 5. | 360 | + | 90 | = |
|
| 6. | 790 | + | 20 | = |
|
| 7. | 580 | + | 70 | = |
|
| 8. | 830 | + | 80 | = |
|
| 9. | 210 | + | 90 | = |
|
| 10. | 720 | + | 70 | = |
|
| Oefening 3 | |||||
| 1. | 540 | + | 80 | = |
|
| 2. | 120 | + | 70 | = |
|
| 3. | 840 | + | 80 | = |
|
| 4. | 630 | + | 70 | = |
|
| 5. | 890 | + | 10 | = |
|
| 6. | 810 | + | 80 | = |
|
| 7. | 320 | + | 70 | = |
|
| 8. | 210 | + | 80 | = |
|
| 9. | 390 | + | 60 | = |
|
| 10. | 320 | + | 90 | = |
|
| Oefening 4 | |||||
| 1. | 920 | + | 80 | = |
|
| 2. | 970 | + | 80 | = |
|
| 3. | 680 | + | 30 | = |
|
| 4. | 920 | + | 80 | = |
|
| 5. | 660 | + | 70 | = |
|
| 6. | 570 | + | 60 | = |
|
| 7. | 480 | + | 30 | = |
|
| 8. | 240 | + | 70 | = |
|
| 9. | 780 | + | 30 | = |
|
| 10. | 140 | + | 80 | = |
|