Optellen van tientallen tot en met een honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 130 | + | 70 | = |
|
| 2. | 910 | + | 90 | = |
|
| 3. | 950 | + | 50 | = |
|
| 4. | 990 | + | 10 | = |
|
| 5. | 780 | + | 20 | = |
|
| 6. | 370 | + | 30 | = |
|
| 7. | 890 | + | 10 | = |
|
| 8. | 550 | + | 50 | = |
|
| 9. | 640 | + | 60 | = |
|
| 10. | 260 | + | 40 | = |
|
| Oefening 2 | |||||
| 1. | 630 | + | 70 | = |
|
| 2. | 950 | + | 50 | = |
|
| 3. | 540 | + | 60 | = |
|
| 4. | 450 | + | 50 | = |
|
| 5. | 770 | + | 30 | = |
|
| 6. | 350 | + | 50 | = |
|
| 7. | 890 | + | 10 | = |
|
| 8. | 660 | + | 40 | = |
|
| 9. | 250 | + | 50 | = |
|
| 10. | 120 | + | 80 | = |
|
| Oefening 3 | |||||
| 1. | 370 | + | 30 | = |
|
| 2. | 990 | + | 10 | = |
|
| 3. | 860 | + | 40 | = |
|
| 4. | 230 | + | 70 | = |
|
| 5. | 980 | + | 20 | = |
|
| 6. | 680 | + | 20 | = |
|
| 7. | 140 | + | 60 | = |
|
| 8. | 230 | + | 70 | = |
|
| 9. | 760 | + | 40 | = |
|
| 10. | 160 | + | 40 | = |
|
| Oefening 4 | |||||
| 1. | 690 | + | 10 | = |
|
| 2. | 480 | + | 20 | = |
|
| 3. | 360 | + | 40 | = |
|
| 4. | 440 | + | 60 | = |
|
| 5. | 150 | + | 50 | = |
|
| 6. | 340 | + | 60 | = |
|
| 7. | 560 | + | 40 | = |
|
| 8. | 570 | + | 30 | = |
|
| 9. | 510 | + | 90 | = |
|
| 10. | 370 | + | 30 | = |
|