Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 17 ? 13 = 221 |
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| 2. | 233 ? 227 = 460 |
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| 3. | 20 ? 14 = 280 |
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| 4. | 20 ? 19 = 380 |
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| 5. | 950 ? 199 = 751 |
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| 6. | 19 ? 11 = 209 |
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| 7. | 952 ? 939 = 13 |
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| 8. | 934 ? 881 = 53 |
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| 9. | 960 ? 135 = 1.095 |
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| 10. | 983 ? 130 = 853 |
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| 11. | 723 ? 155 = 568 |
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| 12. | 18 ? 16 = 288 |
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