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1. \(\sqrt{441}\)
2. \(\sqrt{98}\)
3. \(\sqrt{24}\)
4. \(\sqrt{18}\)
5. \(\sqrt{1210}\)
6. \(\sqrt{1089}\)
7. \(\sqrt{1000}\)
8. \(\sqrt{288}\)
9. \(\sqrt{144}\)
10. \(\sqrt{243}\)
11. \(\sqrt{196}\)
12. \(\sqrt{128}\)

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Verbetersleutel

1. \(\sqrt{441}=\sqrt{49 \cdot 9}=\sqrt{49} \cdot \sqrt{9}=7 \cdot 3=21\)
2. \(\sqrt{98}=\sqrt{49 \cdot 2}=\sqrt{49}\cdot \sqrt{2}=7\sqrt{2}\)
3. \(\sqrt{24}=\sqrt{4 \cdot 6}=\sqrt{4}\cdot \sqrt{6}=2\sqrt{6}\)
4. \(\sqrt{18}=\sqrt{9 \cdot 2}=\sqrt{9}\cdot \sqrt{2}=3\sqrt{2}\)
5. \(\sqrt{1210}=\sqrt{121 \cdot 10}=\sqrt{121}\cdot \sqrt{10}=11\sqrt{10}\)
6. \(\sqrt{1089}=\sqrt{121 \cdot 9}=\sqrt{121} \cdot \sqrt{9}=11 \cdot 3=33\)
7. \(\sqrt{1000}=\sqrt{100 \cdot 10}=\sqrt{100}\cdot \sqrt{10}=10\sqrt{10}\)
8. \(\sqrt{288}=\sqrt{144 \cdot 2}=\sqrt{144}\cdot \sqrt{2}=12\sqrt{2}\)
9. \(\sqrt{144}=12\)
10. \(\sqrt{243}=\sqrt{81 \cdot 3}=\sqrt{81}\cdot \sqrt{3}=9\sqrt{3}\)
11. \(\sqrt{196}=14\)
12. \(\sqrt{128}=\sqrt{64 \cdot 2}=\sqrt{64}\cdot \sqrt{2}=8\sqrt{2}\)