Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 660 | + | 40 | = |
|
| 2. | 870 | + | 30 | = |
|
| 3. | 620 | + | 70 | = |
|
| 4. | 110 | + | 90 | = |
|
| 5. | 220 | + | 90 | = |
|
| 6. | 650 | + | 60 | = |
|
| 7. | 480 | + | 40 | = |
|
| 8. | 620 | + | 70 | = |
|
| 9. | 660 | + | 50 | = |
|
| 10. | 360 | + | 40 | = |
|
| Oefening 2 | |||||
| 1. | 860 | + | 90 | = |
|
| 2. | 470 | + | 90 | = |
|
| 3. | 810 | + | 90 | = |
|
| 4. | 830 | + | 80 | = |
|
| 5. | 760 | + | 50 | = |
|
| 6. | 490 | + | 70 | = |
|
| 7. | 860 | + | 60 | = |
|
| 8. | 170 | + | 90 | = |
|
| 9. | 460 | + | 70 | = |
|
| 10. | 130 | + | 60 | = |
|
| Oefening 3 | |||||
| 1. | 630 | + | 70 | = |
|
| 2. | 360 | + | 70 | = |
|
| 3. | 960 | + | 40 | = |
|
| 4. | 170 | + | 20 | = |
|
| 5. | 940 | + | 70 | = |
|
| 6. | 830 | + | 70 | = |
|
| 7. | 560 | + | 80 | = |
|
| 8. | 410 | + | 90 | = |
|
| 9. | 640 | + | 90 | = |
|
| 10. | 180 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 660 | + | 80 | = |
|
| 2. | 160 | + | 80 | = |
|
| 3. | 810 | + | 90 | = |
|
| 4. | 170 | + | 60 | = |
|
| 5. | 990 | + | 40 | = |
|
| 6. | 390 | + | 30 | = |
|
| 7. | 860 | + | 90 | = |
|
| 8. | 190 | + | 50 | = |
|
| 9. | 530 | + | 80 | = |
|
| 10. | 370 | + | 20 | = |
|