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1. \(\)Zet 261 mm² om in cm²\(\)
2. \(\)Zet 301 dm² om in cm²\(\)
3. \(\)Zet 237 dam² om in km²\(\)
4. \(\)Zet 302 mm² om in cm²\(\)
5. \(\)Zet 144 dam² om in cm²\(\)
6. \(\)Zet 271 dam² om in dm²\(\)
7. \(\)Zet 366 m² om in cm²\(\)
8. \(\)Zet 380 dam² om in cm²\(\)
9. \(\)Zet 154 mm² om in dm²\(\)
10. \(\)Zet 256 dm² om in dam²\(\)
11. \(\)Zet 121 km² om in dam²\(\)
12. \(\)Zet 299 hm² om in km²\(\)

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Verbetersleutel

1. \(261 \text{ }mm²=2{,}61\text{ }cm²\)
2. \(301 \text{ }dm²=30100\text{ }cm²\)
3. \(237 \text{ }dam²=0{,}0237\text{ }km²\)
4. \(302 \text{ }mm²=3{,}02\text{ }cm²\)
5. \(144 \text{ }dam²=144000000\text{ }cm²\)
6. \(271 \text{ }dam²=2710000\text{ }dm²\)
7. \(366 \text{ }m²=3660000\text{ }cm²\)
8. \(380 \text{ }dam²=380000000\text{ }cm²\)
9. \(154 \text{ }mm²=0{,}0154\text{ }dm²\)
10. \(256 \text{ }dm²=0{,}0256\text{ }dam²\)
11. \(121 \text{ }km²=1210000\text{ }dam²\)
12. \(299 \text{ }hm²=2{,}99\text{ }km²\)