Rekenen met wortels (reeks 2)

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1. \(\sqrt{0,0169}\)
2. \(\sqrt{0,0225}\)
3. \(\sqrt{0,25}\)
4. \(\sqrt{1,44}\)
5. \(\sqrt{1,21}\)
6. \(\sqrt{0,0196}\)
7. \(\sqrt{0,0324}\)
8. \(\sqrt{0,0144}\)
9. \(\sqrt{0,0016}\)
10. \(\sqrt{0,04}\)
11. \(\sqrt{0,0121}\)
12. \(\sqrt{2,56}\)

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Verbetersleutel

1. \(\sqrt{0,0169}=\sqrt{\frac{169 }{ 10000}}=\frac{\sqrt{169}}{\sqrt{10000}}=\frac{13}{100}=\frac{13}{100}\)
2. \(\sqrt{0,0225}=\sqrt{\frac{225 }{ 10000}}=\frac{\sqrt{225}}{\sqrt{10000}}=\frac{15}{100}=\frac{3}{20}\)
3. \(\sqrt{0,25}=\sqrt{\frac{25 }{ 100}}=\frac{\sqrt{25}}{\sqrt{100}}=\frac{5}{10}=\frac{1}{2}\)
4. \(\sqrt{1,44}=\sqrt{\frac{144 }{ 100}}=\frac{\sqrt{144}}{\sqrt{100}}=\frac{12}{10}=\frac{6}{5}\)
5. \(\sqrt{1,21}=\sqrt{\frac{121 }{ 100}}=\frac{\sqrt{121}}{\sqrt{100}}=\frac{11}{10}=\frac{11}{10}\)
6. \(\sqrt{0,0196}=\sqrt{\frac{196 }{ 10000}}=\frac{\sqrt{196}}{\sqrt{10000}}=\frac{14}{100}=\frac{7}{50}\)
7. \(\sqrt{0,0324}=\sqrt{\frac{324 }{ 10000}}=\frac{\sqrt{324}}{\sqrt{10000}}=\frac{18}{100}=\frac{9}{50}\)
8. \(\sqrt{0,0144}=\sqrt{\frac{144 }{ 10000}}=\frac{\sqrt{144}}{\sqrt{10000}}=\frac{12}{100}=\frac{3}{25}\)
9. \(\sqrt{0,0016}=\sqrt{\frac{16 }{ 10000}}=\frac{\sqrt{16}}{\sqrt{10000}}=\frac{4}{100}=\frac{1}{25}\)
10. \(\sqrt{0,04}=\sqrt{\frac{4 }{ 100}}=\frac{\sqrt{4}}{\sqrt{100}}=\frac{2}{10}=\frac{1}{5}\)
11. \(\sqrt{0,0121}=\sqrt{\frac{121 }{ 10000}}=\frac{\sqrt{121}}{\sqrt{10000}}=\frac{11}{100}=\frac{11}{100}\)
12. \(\sqrt{2,56}=\sqrt{\frac{256 }{ 100}}=\frac{\sqrt{256}}{\sqrt{100}}=\frac{16}{10}=\frac{8}{5}\)