Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 17 ? 13 = 221 |
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| 2. | 574 ? 341 = 233 |
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| 3. | 13 ? 11 = 143 |
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| 4. | 680 ? 164 = 844 |
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| 5. | 769 ? 76 = 693 |
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| 6. | 369 ? 77 = 446 |
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| 7. | 712 ? 693 = 1.405 |
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| 8. | 894 ? 651 = 243 |
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| 9. | 690 ? 649 = 41 |
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| 10. | 433 ? 288 = 721 |
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| 11. | 19 ? 17 = 323 |
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| 12. | 14 ? 10 = 140 |
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