Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 78 ? 11 = 67 |
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| 2. | 91 ? 65 = 156 |
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| 3. | 56 ? 33 = 23 |
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| 4. | 77 ? 45 = 122 |
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| 5. | 18 ? 16 = 2 |
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| 6. | 8 ? 1 = 8 |
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| 7. | 81 ? 65 = 146 |
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| 8. | 52 ? 29 = 23 |
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| 9. | 90 ? 31 = 121 |
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| 10. | 28 ? 27 = 55 |
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| 11. | 51 ? 31 = 82 |
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| 12. | 69 ? 10 = 79 |
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