Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 160 | + | 40 | = |
|
| 2. | 970 | + | 30 | = |
|
| 3. | 240 | + | 60 | = |
|
| 4. | 150 | + | 50 | = |
|
| 5. | 690 | + | 10 | = |
|
| 6. | 670 | + | 30 | = |
|
| 7. | 890 | + | 10 | = |
|
| 8. | 170 | + | 30 | = |
|
| 9. | 470 | + | 30 | = |
|
| 10. | 880 | + | 20 | = |
|
| Oefening 2 | |||||
| 1. | 410 | + | 90 | = |
|
| 2. | 240 | + | 60 | = |
|
| 3. | 890 | + | 10 | = |
|
| 4. | 450 | + | 50 | = |
|
| 5. | 330 | + | 70 | = |
|
| 6. | 340 | + | 60 | = |
|
| 7. | 410 | + | 90 | = |
|
| 8. | 370 | + | 30 | = |
|
| 9. | 590 | + | 10 | = |
|
| 10. | 610 | + | 90 | = |
|
| Oefening 3 | |||||
| 1. | 780 | + | 20 | = |
|
| 2. | 250 | + | 50 | = |
|
| 3. | 790 | + | 10 | = |
|
| 4. | 810 | + | 90 | = |
|
| 5. | 470 | + | 30 | = |
|
| 6. | 110 | + | 90 | = |
|
| 7. | 870 | + | 30 | = |
|
| 8. | 130 | + | 70 | = |
|
| 9. | 490 | + | 10 | = |
|
| 10. | 290 | + | 10 | = |
|
| Oefening 4 | |||||
| 1. | 460 | + | 40 | = |
|
| 2. | 660 | + | 40 | = |
|
| 3. | 820 | + | 80 | = |
|
| 4. | 710 | + | 90 | = |
|
| 5. | 680 | + | 20 | = |
|
| 6. | 240 | + | 60 | = |
|
| 7. | 670 | + | 30 | = |
|
| 8. | 770 | + | 30 | = |
|
| 9. | 490 | + | 10 | = |
|
| 10. | 260 | + | 40 | = |
|