Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 440 | + | 60 | = |
|
| 2. | 260 | + | 40 | = |
|
| 3. | 340 | + | 60 | = |
|
| 4. | 690 | + | 10 | = |
|
| 5. | 910 | + | 90 | = |
|
| 6. | 190 | + | 10 | = |
|
| 7. | 820 | + | 80 | = |
|
| 8. | 880 | + | 20 | = |
|
| 9. | 740 | + | 60 | = |
|
| 10. | 210 | + | 90 | = |
|
| Oefening 2 | |||||
| 1. | 650 | + | 50 | = |
|
| 2. | 880 | + | 20 | = |
|
| 3. | 210 | + | 90 | = |
|
| 4. | 920 | + | 80 | = |
|
| 5. | 740 | + | 60 | = |
|
| 6. | 980 | + | 20 | = |
|
| 7. | 730 | + | 70 | = |
|
| 8. | 610 | + | 90 | = |
|
| 9. | 220 | + | 80 | = |
|
| 10. | 740 | + | 60 | = |
|
| Oefening 3 | |||||
| 1. | 840 | + | 60 | = |
|
| 2. | 510 | + | 90 | = |
|
| 3. | 860 | + | 40 | = |
|
| 4. | 830 | + | 70 | = |
|
| 5. | 160 | + | 40 | = |
|
| 6. | 860 | + | 40 | = |
|
| 7. | 930 | + | 70 | = |
|
| 8. | 830 | + | 70 | = |
|
| 9. | 480 | + | 20 | = |
|
| 10. | 620 | + | 80 | = |
|
| Oefening 4 | |||||
| 1. | 110 | + | 90 | = |
|
| 2. | 610 | + | 90 | = |
|
| 3. | 630 | + | 70 | = |
|
| 4. | 470 | + | 30 | = |
|
| 5. | 330 | + | 70 | = |
|
| 6. | 710 | + | 90 | = |
|
| 7. | 620 | + | 80 | = |
|
| 8. | 970 | + | 30 | = |
|
| 9. | 150 | + | 50 | = |
|
| 10. | 730 | + | 70 | = |
|