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1. \(\sqrt{245}\)
2. \(\sqrt{900}\)
3. \(\sqrt{150}\)
4. \(\sqrt{200}\)
5. \(\sqrt{225}\)
6. \(\sqrt{36}\)
7. \(\sqrt{784}\)
8. \(\sqrt{160}\)
9. \(\sqrt{400}\)
10. \(\sqrt{1600}\)
11. \(\sqrt{576}\)
12. \(\sqrt{486}\)

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Verbetersleutel

1. \(\sqrt{245}=\sqrt{49 \cdot 5}=\sqrt{49}\cdot \sqrt{5}=7\sqrt{5}\)
2. \(\sqrt{900}=\sqrt{9 \cdot 100}=\sqrt{9} \cdot \sqrt{100}=3 \cdot 10=30\)
3. \(\sqrt{150}=\sqrt{25 \cdot 6}=\sqrt{25}\cdot \sqrt{6}=5\sqrt{6}\)
4. \(\sqrt{200}=\sqrt{100 \cdot 2}=\sqrt{100}\cdot \sqrt{2}=10\sqrt{2}\)
5. \(\sqrt{225}=15\)
6. \(\sqrt{36}=6\)
7. \(\sqrt{784}=\sqrt{196 \cdot 4}=\sqrt{196} \cdot \sqrt{4}=14 \cdot 2=28\)
8. \(\sqrt{160}=\sqrt{16 \cdot 10}=\sqrt{16}\cdot \sqrt{10}=4\sqrt{10}\)
9. \(\sqrt{400}=20\)
10. \(\sqrt{1600}=\sqrt{16 \cdot 100}=\sqrt{16} \cdot \sqrt{100}=4 \cdot 10=40\)
11. \(\sqrt{576}=\sqrt{144 \cdot 4}=\sqrt{144} \cdot \sqrt{4}=12 \cdot 2=24\)
12. \(\sqrt{486}=\sqrt{81 \cdot 6}=\sqrt{81}\cdot \sqrt{6}=9\sqrt{6}\)