Rekenen met wortels (reeks 2)

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1. \(\sqrt{0{,}0025}\)
2. \(\sqrt{0{,}81}\)
3. \(\sqrt{0{,}0081}\)
4. \(\sqrt{0{,}09}\)
5. \(\sqrt{1{,}69}\)
6. \(\sqrt{2{,}56}\)
7. \(\sqrt{2{,}89}\)
8. \(\sqrt{1{,}44}\)
9. \(\sqrt{3{,}24}\)
10. \(\sqrt{0{,}0256}\)
11. \(\sqrt{0{,}0064}\)
12. \(\sqrt{0{,}0196}\)

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Verbetersleutel

1. \(\sqrt{0{,}0025}=\sqrt{\frac{25 }{ 10000}}=\frac{\sqrt{25}}{\sqrt{10000}}=\frac{5}{100}=\frac{1}{20}\)
2. \(\sqrt{0{,}81}=\sqrt{\frac{81 }{ 100}}=\frac{\sqrt{81}}{\sqrt{100}}=\frac{9}{10}=\frac{9}{10}\)
3. \(\sqrt{0{,}0081}=\sqrt{\frac{81 }{ 10000}}=\frac{\sqrt{81}}{\sqrt{10000}}=\frac{9}{100}=\frac{9}{100}\)
4. \(\sqrt{0{,}09}=\sqrt{\frac{9 }{ 100}}=\frac{\sqrt{9}}{\sqrt{100}}=\frac{3}{10}=\frac{3}{10}\)
5. \(\sqrt{1{,}69}=\sqrt{\frac{169 }{ 100}}=\frac{\sqrt{169}}{\sqrt{100}}=\frac{13}{10}=\frac{13}{10}\)
6. \(\sqrt{2{,}56}=\sqrt{\frac{256 }{ 100}}=\frac{\sqrt{256}}{\sqrt{100}}=\frac{16}{10}=\frac{8}{5}\)
7. \(\sqrt{2{,}89}=\sqrt{\frac{289 }{ 100}}=\frac{\sqrt{289}}{\sqrt{100}}=\frac{17}{10}=\frac{17}{10}\)
8. \(\sqrt{1{,}44}=\sqrt{\frac{144 }{ 100}}=\frac{\sqrt{144}}{\sqrt{100}}=\frac{12}{10}=\frac{6}{5}\)
9. \(\sqrt{3{,}24}=\sqrt{\frac{324 }{ 100}}=\frac{\sqrt{324}}{\sqrt{100}}=\frac{18}{10}=\frac{9}{5}\)
10. \(\sqrt{0{,}0256}=\sqrt{\frac{256 }{ 10000}}=\frac{\sqrt{256}}{\sqrt{10000}}=\frac{16}{100}=\frac{4}{25}\)
11. \(\sqrt{0{,}0064}=\sqrt{\frac{64 }{ 10000}}=\frac{\sqrt{64}}{\sqrt{10000}}=\frac{8}{100}=\frac{2}{25}\)
12. \(\sqrt{0{,}0196}=\sqrt{\frac{196 }{ 10000}}=\frac{\sqrt{196}}{\sqrt{10000}}=\frac{14}{100}=\frac{7}{50}\)