Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 280 | + | 60 | = |
|
| 2. | 250 | + | 80 | = |
|
| 3. | 120 | + | 90 | = |
|
| 4. | 350 | + | 60 | = |
|
| 5. | 440 | + | 70 | = |
|
| 6. | 690 | + | 70 | = |
|
| 7. | 960 | + | 40 | = |
|
| 8. | 770 | + | 30 | = |
|
| 9. | 240 | + | 90 | = |
|
| 10. | 380 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 240 | + | 80 | = |
|
| 2. | 110 | + | 90 | = |
|
| 3. | 190 | + | 80 | = |
|
| 4. | 520 | + | 70 | = |
|
| 5. | 870 | + | 60 | = |
|
| 6. | 110 | + | 90 | = |
|
| 7. | 350 | + | 50 | = |
|
| 8. | 920 | + | 80 | = |
|
| 9. | 430 | + | 90 | = |
|
| 10. | 210 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 750 | + | 80 | = |
|
| 2. | 180 | + | 40 | = |
|
| 3. | 720 | + | 80 | = |
|
| 4. | 520 | + | 90 | = |
|
| 5. | 440 | + | 60 | = |
|
| 6. | 990 | + | 70 | = |
|
| 7. | 980 | + | 90 | = |
|
| 8. | 870 | + | 20 | = |
|
| 9. | 620 | + | 90 | = |
|
| 10. | 540 | + | 50 | = |
|
| Oefening 4 | |||||
| 1. | 430 | + | 70 | = |
|
| 2. | 890 | + | 80 | = |
|
| 3. | 350 | + | 90 | = |
|
| 4. | 480 | + | 20 | = |
|
| 5. | 920 | + | 90 | = |
|
| 6. | 940 | + | 50 | = |
|
| 7. | 260 | + | 70 | = |
|
| 8. | 160 | + | 40 | = |
|
| 9. | 930 | + | 80 | = |
|
| 10. | 660 | + | 70 | = |
|