Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 180 | + | 80 | = |
|
| 2. | 320 | + | 90 | = |
|
| 3. | 130 | + | 70 | = |
|
| 4. | 780 | + | 40 | = |
|
| 5. | 740 | + | 50 | = |
|
| 6. | 170 | + | 50 | = |
|
| 7. | 690 | + | 90 | = |
|
| 8. | 660 | + | 30 | = |
|
| 9. | 920 | + | 70 | = |
|
| 10. | 450 | + | 70 | = |
|
| Oefening 2 | |||||
| 1. | 540 | + | 90 | = |
|
| 2. | 160 | + | 90 | = |
|
| 3. | 930 | + | 70 | = |
|
| 4. | 970 | + | 70 | = |
|
| 5. | 980 | + | 60 | = |
|
| 6. | 250 | + | 50 | = |
|
| 7. | 250 | + | 90 | = |
|
| 8. | 650 | + | 60 | = |
|
| 9. | 230 | + | 80 | = |
|
| 10. | 730 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 770 | + | 90 | = |
|
| 2. | 350 | + | 90 | = |
|
| 3. | 250 | + | 80 | = |
|
| 4. | 210 | + | 90 | = |
|
| 5. | 140 | + | 80 | = |
|
| 6. | 150 | + | 60 | = |
|
| 7. | 170 | + | 80 | = |
|
| 8. | 340 | + | 60 | = |
|
| 9. | 480 | + | 30 | = |
|
| 10. | 420 | + | 70 | = |
|
| Oefening 4 | |||||
| 1. | 770 | + | 60 | = |
|
| 2. | 260 | + | 40 | = |
|
| 3. | 430 | + | 80 | = |
|
| 4. | 950 | + | 90 | = |
|
| 5. | 640 | + | 70 | = |
|
| 6. | 690 | + | 40 | = |
|
| 7. | 850 | + | 70 | = |
|
| 8. | 560 | + | 40 | = |
|
| 9. | 840 | + | 60 | = |
|
| 10. | 360 | + | 60 | = |
|