Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 320 | + | 90 | = |
|
| 2. | 720 | + | 80 | = |
|
| 3. | 780 | + | 70 | = |
|
| 4. | 250 | + | 90 | = |
|
| 5. | 410 | + | 80 | = |
|
| 6. | 460 | + | 50 | = |
|
| 7. | 910 | + | 80 | = |
|
| 8. | 310 | + | 90 | = |
|
| 9. | 480 | + | 60 | = |
|
| 10. | 420 | + | 80 | = |
|
| Oefening 2 | |||||
| 1. | 380 | + | 50 | = |
|
| 2. | 430 | + | 60 | = |
|
| 3. | 520 | + | 80 | = |
|
| 4. | 130 | + | 70 | = |
|
| 5. | 440 | + | 60 | = |
|
| 6. | 690 | + | 50 | = |
|
| 7. | 940 | + | 50 | = |
|
| 8. | 150 | + | 70 | = |
|
| 9. | 190 | + | 80 | = |
|
| 10. | 220 | + | 70 | = |
|
| Oefening 3 | |||||
| 1. | 550 | + | 80 | = |
|
| 2. | 750 | + | 40 | = |
|
| 3. | 290 | + | 90 | = |
|
| 4. | 440 | + | 60 | = |
|
| 5. | 830 | + | 70 | = |
|
| 6. | 310 | + | 80 | = |
|
| 7. | 840 | + | 60 | = |
|
| 8. | 110 | + | 90 | = |
|
| 9. | 680 | + | 70 | = |
|
| 10. | 480 | + | 30 | = |
|
| Oefening 4 | |||||
| 1. | 710 | + | 80 | = |
|
| 2. | 250 | + | 50 | = |
|
| 3. | 580 | + | 20 | = |
|
| 4. | 650 | + | 90 | = |
|
| 5. | 270 | + | 40 | = |
|
| 6. | 950 | + | 50 | = |
|
| 7. | 240 | + | 90 | = |
|
| 8. | 380 | + | 60 | = |
|
| 9. | 370 | + | 70 | = |
|
| 10. | 450 | + | 40 | = |
|