Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 270 | + | 90 | = |
|
| 2. | 610 | + | 80 | = |
|
| 3. | 230 | + | 60 | = |
|
| 4. | 430 | + | 70 | = |
|
| 5. | 510 | + | 80 | = |
|
| 6. | 720 | + | 80 | = |
|
| 7. | 250 | + | 60 | = |
|
| 8. | 670 | + | 30 | = |
|
| 9. | 420 | + | 90 | = |
|
| 10. | 480 | + | 70 | = |
|
| Oefening 2 | |||||
| 1. | 120 | + | 80 | = |
|
| 2. | 170 | + | 50 | = |
|
| 3. | 810 | + | 90 | = |
|
| 4. | 370 | + | 80 | = |
|
| 5. | 250 | + | 80 | = |
|
| 6. | 320 | + | 90 | = |
|
| 7. | 140 | + | 70 | = |
|
| 8. | 550 | + | 70 | = |
|
| 9. | 190 | + | 30 | = |
|
| 10. | 520 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 350 | + | 60 | = |
|
| 2. | 320 | + | 90 | = |
|
| 3. | 570 | + | 60 | = |
|
| 4. | 460 | + | 60 | = |
|
| 5. | 990 | + | 60 | = |
|
| 6. | 450 | + | 50 | = |
|
| 7. | 710 | + | 80 | = |
|
| 8. | 150 | + | 40 | = |
|
| 9. | 640 | + | 90 | = |
|
| 10. | 690 | + | 50 | = |
|
| Oefening 4 | |||||
| 1. | 210 | + | 80 | = |
|
| 2. | 240 | + | 60 | = |
|
| 3. | 210 | + | 80 | = |
|
| 4. | 910 | + | 80 | = |
|
| 5. | 310 | + | 90 | = |
|
| 6. | 770 | + | 40 | = |
|
| 7. | 150 | + | 60 | = |
|
| 8. | 160 | + | 60 | = |
|
| 9. | 660 | + | 30 | = |
|
| 10. | 410 | + | 90 | = |
|