Met tientallen over het honderdtal
Erbijsommen
| Oefening 1 | |||||
| 1. | 120 | + | 80 | = |
|
| 2. | 210 | + | 90 | = |
|
| 3. | 540 | + | 70 | = |
|
| 4. | 550 | + | 60 | = |
|
| 5. | 780 | + | 30 | = |
|
| 6. | 470 | + | 40 | = |
|
| 7. | 950 | + | 90 | = |
|
| 8. | 890 | + | 20 | = |
|
| 9. | 560 | + | 30 | = |
|
| 10. | 160 | + | 30 | = |
|
| Oefening 2 | |||||
| 1. | 130 | + | 60 | = |
|
| 2. | 230 | + | 60 | = |
|
| 3. | 520 | + | 80 | = |
|
| 4. | 240 | + | 90 | = |
|
| 5. | 270 | + | 50 | = |
|
| 6. | 370 | + | 70 | = |
|
| 7. | 170 | + | 80 | = |
|
| 8. | 140 | + | 60 | = |
|
| 9. | 630 | + | 70 | = |
|
| 10. | 640 | + | 50 | = |
|
| Oefening 3 | |||||
| 1. | 780 | + | 20 | = |
|
| 2. | 980 | + | 90 | = |
|
| 3. | 310 | + | 90 | = |
|
| 4. | 830 | + | 90 | = |
|
| 5. | 870 | + | 90 | = |
|
| 6. | 510 | + | 90 | = |
|
| 7. | 890 | + | 30 | = |
|
| 8. | 880 | + | 30 | = |
|
| 9. | 610 | + | 90 | = |
|
| 10. | 940 | + | 90 | = |
|
| Oefening 4 | |||||
| 1. | 290 | + | 80 | = |
|
| 2. | 660 | + | 40 | = |
|
| 3. | 170 | + | 40 | = |
|
| 4. | 810 | + | 80 | = |
|
| 5. | 640 | + | 50 | = |
|
| 6. | 790 | + | 80 | = |
|
| 7. | 230 | + | 80 | = |
|
| 8. | 380 | + | 60 | = |
|
| 9. | 480 | + | 40 | = |
|
| 10. | 570 | + | 30 | = |
|