Ergänze das passende Zeichen [3]
Knobelaufgaben
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| 1. | 7 ? 7 = 49 |
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| 2. | 81 ? 53 = 28 |
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| 3. | 48 ? 42 = 90 |
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| 4. | 69 ? 19 = 88 |
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| 5. | 2 ? 1 = 2 |
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| 6. | 70 ? 65 = 135 |
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| 7. | 91 ? 17 = 74 |
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| 8. | 7 ? 3 = 21 |
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| 9. | 98 ? 44 = 54 |
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| 10. | 6 ? 4 = 24 |
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| 11. | 81 ? 30 = 51 |
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| 12. | 3 ? 1 = 3 |
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