Erbijsommen tot 100
Optellen
| Oefening 1 | |||||
| 1. | 29 | + | 27 | = |
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| 2. | 45 | + | 30 | = |
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| 3. | 36 | + | 6 | = |
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| 4. | 45 | + | 34 | = |
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| 5. | 49 | + | 4 | = |
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| 6. | 13 | + | 2 | = |
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| 7. | 30 | + | 15 | = |
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| 8. | 45 | + | 43 | = |
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| 9. | 47 | + | 28 | = |
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| 10. | 25 | + | 16 | = |
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| Oefening 2 | |||||
| 1. | 11 | + | 8 | = |
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| 2. | 15 | + | 5 | = |
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| 3. | 46 | + | 28 | = |
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| 4. | 16 | + | 2 | = |
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| 5. | 42 | + | 29 | = |
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| 6. | 8 | + | 4 | = |
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| 7. | 47 | + | 2 | = |
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| 8. | 44 | + | 5 | = |
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| 9. | 45 | + | 42 | = |
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| 10. | 28 | + | 22 | = |
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| Oefening 3 | |||||
| 1. | 24 | + | 2 | = |
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| 2. | 33 | + | 17 | = |
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| 3. | 34 | + | 8 | = |
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| 4. | 23 | + | 12 | = |
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| 5. | 50 | + | 37 | = |
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| 6. | 38 | + | 26 | = |
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| 7. | 34 | + | 16 | = |
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| 8. | 41 | + | 17 | = |
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| 9. | 47 | + | 42 | = |
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| 10. | 44 | + | 25 | = |
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| Oefening 4 | |||||
| 1. | 35 | + | 21 | = |
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| 2. | 48 | + | 35 | = |
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| 3. | 42 | + | 4 | = |
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| 4. | 44 | + | 30 | = |
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| 5. | 13 | + | 11 | = |
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| 6. | 34 | + | 15 | = |
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| 7. | 46 | + | 35 | = |
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| 8. | 18 | + | 12 | = |
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| 9. | 18 | + | 9 | = |
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| 10. | 24 | + | 7 | = |
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