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1. \(\sqrt{1440}\)
2. \(\sqrt{8}\)
3. \(\sqrt{640}\)
4. \(\sqrt{12}\)
5. \(\sqrt{900}\)
6. \(\sqrt{324}\)
7. \(\sqrt{144}\)
8. \(\sqrt{1296}\)
9. \(\sqrt{242}\)
10. \(\sqrt{36}\)
11. \(\sqrt{40}\)
12. \(\sqrt{3025}\)

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Verbetersleutel

1. \(\sqrt{1440}=\sqrt{144 \cdot 10}=\sqrt{144}\cdot \sqrt{10}=12\sqrt{10}\)
2. \(\sqrt{8}=\sqrt{4 \cdot 2}=\sqrt{4}\cdot \sqrt{2}=2\sqrt{2}\)
3. \(\sqrt{640}=\sqrt{64 \cdot 10}=\sqrt{64}\cdot \sqrt{10}=8\sqrt{10}\)
4. \(\sqrt{12}=\sqrt{4 \cdot 3}=\sqrt{4}\cdot \sqrt{3}=2\sqrt{3}\)
5. \(\sqrt{900}=\sqrt{9 \cdot 100}=\sqrt{9} \cdot \sqrt{100}=3 \cdot 10=30\)
6. \(\sqrt{324}=18\)
7. \(\sqrt{144}=12\)
8. \(\sqrt{1296}=\sqrt{324 \cdot 4}=\sqrt{324} \cdot \sqrt{4}=18 \cdot 2=36\)
9. \(\sqrt{242}=\sqrt{121 \cdot 2}=\sqrt{121}\cdot \sqrt{2}=11\sqrt{2}\)
10. \(\sqrt{36}=6\)
11. \(\sqrt{40}=\sqrt{4 \cdot 10}=\sqrt{4}\cdot \sqrt{10}=2\sqrt{10}\)
12. \(\sqrt{3025}=\sqrt{121 \cdot 25}=\sqrt{121} \cdot \sqrt{25}=11 \cdot 5=55\)