Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 750 | + | 50 | = |
|
| 2. | 950 | + | 60 | = |
|
| 3. | 350 | + | 80 | = |
|
| 4. | 420 | + | 70 | = |
|
| 5. | 340 | + | 60 | = |
|
| 6. | 420 | + | 70 | = |
|
| 7. | 350 | + | 90 | = |
|
| 8. | 380 | + | 40 | = |
|
| 9. | 480 | + | 80 | = |
|
| 10. | 530 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 350 | + | 50 | = |
|
| 2. | 680 | + | 30 | = |
|
| 3. | 740 | + | 90 | = |
|
| 4. | 180 | + | 30 | = |
|
| 5. | 580 | + | 80 | = |
|
| 6. | 680 | + | 50 | = |
|
| 7. | 520 | + | 80 | = |
|
| 8. | 690 | + | 20 | = |
|
| 9. | 990 | + | 90 | = |
|
| 10. | 450 | + | 40 | = |
|
| Oefening 3 | |||||
| 1. | 690 | + | 20 | = |
|
| 2. | 520 | + | 80 | = |
|
| 3. | 870 | + | 40 | = |
|
| 4. | 270 | + | 30 | = |
|
| 5. | 190 | + | 10 | = |
|
| 6. | 970 | + | 60 | = |
|
| 7. | 260 | + | 90 | = |
|
| 8. | 330 | + | 70 | = |
|
| 9. | 270 | + | 60 | = |
|
| 10. | 160 | + | 70 | = |
|
| Oefening 4 | |||||
| 1. | 330 | + | 70 | = |
|
| 2. | 770 | + | 70 | = |
|
| 3. | 170 | + | 30 | = |
|
| 4. | 920 | + | 70 | = |
|
| 5. | 460 | + | 70 | = |
|
| 6. | 430 | + | 90 | = |
|
| 7. | 340 | + | 50 | = |
|
| 8. | 240 | + | 50 | = |
|
| 9. | 870 | + | 60 | = |
|
| 10. | 230 | + | 80 | = |
|