Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 236 ? 184 = 420 |
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| 2. | 524 ? 169 = 693 |
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| 3. | 878 ? 851 = 1.729 |
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| 4. | 20 ? 11 = 220 |
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| 5. | 177 ? 156 = 21 |
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| 6. | 20 ? 15 = 300 |
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| 7. | 13 ? 11 = 143 |
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| 8. | 998 ? 549 = 449 |
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| 9. | 20 ? 13 = 260 |
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| 10. | 997 ? 935 = 62 |
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| 11. | 408 ? 377 = 785 |
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| 12. | 20 ? 12 = 240 |
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