Erbijsommen tot 100
Optellen
| Oefening 1 | |||||
| 1. | 43 | + | 39 | = |
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| 2. | 45 | + | 42 | = |
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| 3. | 44 | + | 39 | = |
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| 4. | 37 | + | 18 | = |
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| 5. | 47 | + | 41 | = |
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| 6. | 24 | + | 22 | = |
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| 7. | 40 | + | 18 | = |
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| 8. | 41 | + | 18 | = |
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| 9. | 2 | + | 1 | = |
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| 10. | 16 | + | 3 | = |
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| Oefening 2 | |||||
| 1. | 43 | + | 40 | = |
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| 2. | 30 | + | 11 | = |
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| 3. | 36 | + | 5 | = |
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| 4. | 41 | + | 27 | = |
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| 5. | 12 | + | 9 | = |
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| 6. | 31 | + | 20 | = |
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| 7. | 48 | + | 31 | = |
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| 8. | 46 | + | 39 | = |
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| 9. | 31 | + | 28 | = |
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| 10. | 33 | + | 24 | = |
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| Oefening 3 | |||||
| 1. | 49 | + | 27 | = |
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| 2. | 40 | + | 36 | = |
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| 3. | 44 | + | 9 | = |
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| 4. | 47 | + | 20 | = |
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| 5. | 27 | + | 19 | = |
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| 6. | 43 | + | 26 | = |
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| 7. | 29 | + | 24 | = |
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| 8. | 9 | + | 6 | = |
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| 9. | 11 | + | 6 | = |
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| 10. | 38 | + | 4 | = |
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| Oefening 4 | |||||
| 1. | 36 | + | 12 | = |
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| 2. | 31 | + | 8 | = |
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| 3. | 7 | + | 1 | = |
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| 4. | 22 | + | 7 | = |
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| 5. | 45 | + | 30 | = |
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| 6. | 26 | + | 8 | = |
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| 7. | 21 | + | 17 | = |
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| 8. | 44 | + | 4 | = |
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| 9. | 47 | + | 17 | = |
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| 10. | 35 | + | 19 | = |
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