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1. \(\)Zet 280 cm² om in m²\(\)
2. \(\)Zet 45 m² om in dam²\(\)
3. \(\)Zet 89 m² om in mm²\(\)
4. \(\)Zet 210 m² om in dm²\(\)
5. \(\)Zet 391 mm² om in dm²\(\)
6. \(\)Zet 310 dam² om in km²\(\)
7. \(\)Zet 385 dam² om in km²\(\)
8. \(\)Zet 292 km² om in m²\(\)
9. \(\)Zet 181 hm² om in m²\(\)
10. \(\)Zet 334 dm² om in cm²\(\)
11. \(\)Zet 68 hm² om in dam²\(\)
12. \(\)Zet 313 hm² om in km²\(\)

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Verbetersleutel

1. \(280 \text{ }cm²=0{,}028\text{ }m²\)
2. \(45 \text{ }m²=0{,}45\text{ }dam²\)
3. \(89 \text{ }m²=89000000\text{ }mm²\)
4. \(210 \text{ }m²=21000\text{ }dm²\)
5. \(391 \text{ }mm²=0{,}0391\text{ }dm²\)
6. \(310 \text{ }dam²=0{,}031\text{ }km²\)
7. \(385 \text{ }dam²=0{,}0385\text{ }km²\)
8. \(292 \text{ }km²=292000000\text{ }m²\)
9. \(181 \text{ }hm²=1810000\text{ }m²\)
10. \(334 \text{ }dm²=33400\text{ }cm²\)
11. \(68 \text{ }hm²=6800\text{ }dam²\)
12. \(313 \text{ }hm²=3{,}13\text{ }km²\)