Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 638 ? 68 = 570 |
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| 2. | 931 ? 54 = 877 |
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| 3. | 619 ? 509 = 110 |
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| 4. | 513 ? 230 = 743 |
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| 5. | 959 ? 346 = 1.305 |
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| 6. | 820 ? 627 = 193 |
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| 7. | 19 ? 11 = 209 |
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| 8. | 19 ? 17 = 323 |
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| 9. | 17 ? 15 = 255 |
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| 10. | 19 ? 14 = 266 |
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| 11. | 873 ? 113 = 986 |
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| 12. | 685 ? 342 = 1.027 |
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