Erbijsommen tot 100
Optellen
| Oefening 1 | |||||
| 1. | 34 | + | 21 | = |
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| 2. | 48 | + | 46 | = |
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| 3. | 13 | + | 12 | = |
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| 4. | 42 | + | 35 | = |
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| 5. | 44 | + | 36 | = |
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| 6. | 25 | + | 23 | = |
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| 7. | 25 | + | 22 | = |
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| 8. | 46 | + | 39 | = |
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| 9. | 37 | + | 19 | = |
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| 10. | 35 | + | 20 | = |
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| Oefening 2 | |||||
| 1. | 37 | + | 36 | = |
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| 2. | 50 | + | 27 | = |
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| 3. | 47 | + | 28 | = |
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| 4. | 33 | + | 31 | = |
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| 5. | 34 | + | 10 | = |
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| 6. | 50 | + | 45 | = |
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| 7. | 50 | + | 34 | = |
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| 8. | 44 | + | 12 | = |
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| 9. | 47 | + | 20 | = |
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| 10. | 34 | + | 31 | = |
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| Oefening 3 | |||||
| 1. | 34 | + | 28 | = |
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| 2. | 46 | + | 15 | = |
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| 3. | 31 | + | 20 | = |
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| 4. | 48 | + | 27 | = |
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| 5. | 25 | + | 21 | = |
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| 6. | 39 | + | 20 | = |
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| 7. | 39 | + | 11 | = |
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| 8. | 38 | + | 18 | = |
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| 9. | 49 | + | 47 | = |
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| 10. | 35 | + | 29 | = |
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| Oefening 4 | |||||
| 1. | 36 | + | 34 | = |
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| 2. | 40 | + | 32 | = |
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| 3. | 45 | + | 34 | = |
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| 4. | 18 | + | 14 | = |
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| 5. | 43 | + | 14 | = |
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| 6. | 37 | + | 36 | = |
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| 7. | 29 | + | 29 | = |
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| 8. | 38 | + | 26 | = |
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| 9. | 39 | + | 31 | = |
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| 10. | 45 | + | 23 | = |
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