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1. \(\sqrt{196}\)
2. \(\sqrt{576}\)
3. \(\sqrt{726}\)
4. \(\sqrt{400}\)
5. \(\sqrt{245}\)
6. \(\sqrt{18}\)
7. \(\sqrt{72}\)
8. \(\sqrt{216}\)
9. \(\sqrt{12}\)
10. \(\sqrt{144}\)
11. \(\sqrt{500}\)
12. \(\sqrt{8}\)

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Verbetersleutel

1. \(\sqrt{196}=14\)
2. \(\sqrt{576}=\sqrt{144 \cdot 4}=\sqrt{144} \cdot \sqrt{4}=12 \cdot 2=24\)
3. \(\sqrt{726}=\sqrt{121 \cdot 6}=\sqrt{121}\cdot \sqrt{6}=11\sqrt{6}\)
4. \(\sqrt{400}=20\)
5. \(\sqrt{245}=\sqrt{49 \cdot 5}=\sqrt{49}\cdot \sqrt{5}=7\sqrt{5}\)
6. \(\sqrt{18}=\sqrt{9 \cdot 2}=\sqrt{9}\cdot \sqrt{2}=3\sqrt{2}\)
7. \(\sqrt{72}=\sqrt{36 \cdot 2}=\sqrt{36}\cdot \sqrt{2}=6\sqrt{2}\)
8. \(\sqrt{216}=\sqrt{36 \cdot 6}=\sqrt{36}\cdot \sqrt{6}=6\sqrt{6}\)
9. \(\sqrt{12}=\sqrt{4 \cdot 3}=\sqrt{4}\cdot \sqrt{3}=2\sqrt{3}\)
10. \(\sqrt{144}=12\)
11. \(\sqrt{500}=\sqrt{100 \cdot 5}=\sqrt{100}\cdot \sqrt{5}=10\sqrt{5}\)
12. \(\sqrt{8}=\sqrt{4 \cdot 2}=\sqrt{4}\cdot \sqrt{2}=2\sqrt{2}\)