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1. \(\sqrt{490}\)
2. \(\sqrt{1600}\)
3. \(\sqrt{36}\)
4. \(\sqrt{144}\)
5. \(\sqrt{784}\)
6. \(\sqrt{600}\)
7. \(\sqrt{75}\)
8. \(\sqrt{162}\)
9. \(\sqrt{90}\)
10. \(\sqrt{32}\)
11. \(\sqrt{360}\)
12. \(\sqrt{225}\)

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Verbetersleutel

1. \(\sqrt{490}=\sqrt{49 \cdot 10}=\sqrt{49}\cdot \sqrt{10}=7\sqrt{10}\)
2. \(\sqrt{1600}=\sqrt{16 \cdot 100}=\sqrt{16} \cdot \sqrt{100}=4 \cdot 10=40\)
3. \(\sqrt{36}=6\)
4. \(\sqrt{144}=12\)
5. \(\sqrt{784}=\sqrt{196 \cdot 4}=\sqrt{196} \cdot \sqrt{4}=14 \cdot 2=28\)
6. \(\sqrt{600}=\sqrt{100 \cdot 6}=\sqrt{100}\cdot \sqrt{6}=10\sqrt{6}\)
7. \(\sqrt{75}=\sqrt{25 \cdot 3}=\sqrt{25}\cdot \sqrt{3}=5\sqrt{3}\)
8. \(\sqrt{162}=\sqrt{81 \cdot 2}=\sqrt{81}\cdot \sqrt{2}=9\sqrt{2}\)
9. \(\sqrt{90}=\sqrt{9 \cdot 10}=\sqrt{9}\cdot \sqrt{10}=3\sqrt{10}\)
10. \(\sqrt{32}=\sqrt{16 \cdot 2}=\sqrt{16}\cdot \sqrt{2}=4\sqrt{2}\)
11. \(\sqrt{360}=\sqrt{36 \cdot 10}=\sqrt{36}\cdot \sqrt{10}=6\sqrt{10}\)
12. \(\sqrt{225}=15\)