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1. \(\)Zet 130 cm² om in mm²\(\)
2. \(\)Zet 317 hm² om in km²\(\)
3. \(\)Zet 195 dam² om in dm²\(\)
4. \(\)Zet 117 m² om in hm²\(\)
5. \(\)Zet 388 km² om in m²\(\)
6. \(\)Zet 157 mm² om in dm²\(\)
7. \(\)Zet 184 km² om in m²\(\)
8. \(\)Zet 247 dam² om in hm²\(\)
9. \(\)Zet 228 cm² om in mm²\(\)
10. \(\)Zet 213 km² om in m²\(\)
11. \(\)Zet 30 m² om in hm²\(\)
12. \(\)Zet 72 dam² om in cm²\(\)

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Verbetersleutel

1. \(130 \text{ }cm²=13000\text{ }mm²\)
2. \(317 \text{ }hm²=3{,}17\text{ }km²\)
3. \(195 \text{ }dam²=1950000\text{ }dm²\)
4. \(117 \text{ }m²=0{,}0117\text{ }hm²\)
5. \(388 \text{ }km²=388000000\text{ }m²\)
6. \(157 \text{ }mm²=0{,}0157\text{ }dm²\)
7. \(184 \text{ }km²=184000000\text{ }m²\)
8. \(247 \text{ }dam²=2{,}47\text{ }hm²\)
9. \(228 \text{ }cm²=22800\text{ }mm²\)
10. \(213 \text{ }km²=213000000\text{ }m²\)
11. \(30 \text{ }m²=0{,}003\text{ }hm²\)
12. \(72 \text{ }dam²=72000000\text{ }cm²\)