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1. \(\sqrt{90}\)
2. \(\sqrt{3600}\)
3. \(\sqrt{48}\)
4. \(\sqrt{225}\)
5. \(\sqrt{900}\)
6. \(\sqrt{640}\)
7. \(\sqrt{864}\)
8. \(\sqrt{400}\)
9. \(\sqrt{576}\)
10. \(\sqrt{360}\)
11. \(\sqrt{144}\)
12. \(\sqrt{108}\)

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Verbetersleutel

1. \(\sqrt{90}=\sqrt{9 \cdot 10}=\sqrt{9}\cdot \sqrt{10}=3\sqrt{10}\)
2. \(\sqrt{3600}=\sqrt{36 \cdot 100}=\sqrt{36} \cdot \sqrt{100}=6 \cdot 10=60\)
3. \(\sqrt{48}=\sqrt{16 \cdot 3}=\sqrt{16}\cdot \sqrt{3}=4\sqrt{3}\)
4. \(\sqrt{225}=15\)
5. \(\sqrt{900}=\sqrt{9 \cdot 100}=\sqrt{9} \cdot \sqrt{100}=3 \cdot 10=30\)
6. \(\sqrt{640}=\sqrt{64 \cdot 10}=\sqrt{64}\cdot \sqrt{10}=8\sqrt{10}\)
7. \(\sqrt{864}=\sqrt{144 \cdot 6}=\sqrt{144}\cdot \sqrt{6}=12\sqrt{6}\)
8. \(\sqrt{400}=20\)
9. \(\sqrt{576}=\sqrt{144 \cdot 4}=\sqrt{144} \cdot \sqrt{4}=12 \cdot 2=24\)
10. \(\sqrt{360}=\sqrt{36 \cdot 10}=\sqrt{36}\cdot \sqrt{10}=6\sqrt{10}\)
11. \(\sqrt{144}=12\)
12. \(\sqrt{108}=\sqrt{36 \cdot 3}=\sqrt{36}\cdot \sqrt{3}=6\sqrt{3}\)