Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 250 | + | 80 | = |
|
| 2. | 270 | + | 20 | = |
|
| 3. | 660 | + | 80 | = |
|
| 4. | 510 | + | 80 | = |
|
| 5. | 380 | + | 60 | = |
|
| 6. | 660 | + | 90 | = |
|
| 7. | 150 | + | 40 | = |
|
| 8. | 780 | + | 70 | = |
|
| 9. | 620 | + | 70 | = |
|
| 10. | 350 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 910 | + | 90 | = |
|
| 2. | 490 | + | 40 | = |
|
| 3. | 480 | + | 50 | = |
|
| 4. | 740 | + | 70 | = |
|
| 5. | 120 | + | 90 | = |
|
| 6. | 130 | + | 90 | = |
|
| 7. | 440 | + | 60 | = |
|
| 8. | 230 | + | 70 | = |
|
| 9. | 840 | + | 90 | = |
|
| 10. | 620 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 160 | + | 90 | = |
|
| 2. | 450 | + | 70 | = |
|
| 3. | 130 | + | 90 | = |
|
| 4. | 280 | + | 20 | = |
|
| 5. | 670 | + | 40 | = |
|
| 6. | 230 | + | 90 | = |
|
| 7. | 480 | + | 20 | = |
|
| 8. | 380 | + | 90 | = |
|
| 9. | 290 | + | 40 | = |
|
| 10. | 990 | + | 60 | = |
|
| Oefening 4 | |||||
| 1. | 320 | + | 90 | = |
|
| 2. | 760 | + | 70 | = |
|
| 3. | 420 | + | 90 | = |
|
| 4. | 290 | + | 10 | = |
|
| 5. | 210 | + | 80 | = |
|
| 6. | 230 | + | 70 | = |
|
| 7. | 650 | + | 80 | = |
|
| 8. | 980 | + | 10 | = |
|
| 9. | 350 | + | 40 | = |
|
| 10. | 480 | + | 70 | = |
|