Rekenen met wortels (reeks 2)

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1. \(\sqrt{0{,}0049}\)
2. \(\sqrt{0{,}0361}\)
3. \(\sqrt{0{,}0009}\)
4. \(\sqrt{2{,}56}\)
5. \(\sqrt{0{,}0081}\)
6. \(\sqrt{0{,}0289}\)
7. \(\sqrt{1{,}21}\)
8. \(\sqrt{0{,}0196}\)
9. \(\sqrt{2{,}89}\)
10. \(\sqrt{1{,}44}\)
11. \(\sqrt{0{,}0256}\)
12. \(\sqrt{3{,}24}\)

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Verbetersleutel

1. \(\sqrt{0{,}0049}=\sqrt{\frac{49 }{ 10000}}=\frac{\sqrt{49}}{\sqrt{10000}}=\frac{7}{100}=\frac{7}{100}\)
2. \(\sqrt{0{,}0361}=\sqrt{\frac{361 }{ 10000}}=\frac{\sqrt{361}}{\sqrt{10000}}=\frac{19}{100}=\frac{19}{100}\)
3. \(\sqrt{0{,}0009}=\sqrt{\frac{9 }{ 10000}}=\frac{\sqrt{9}}{\sqrt{10000}}=\frac{3}{100}=\frac{3}{100}\)
4. \(\sqrt{2{,}56}=\sqrt{\frac{256 }{ 100}}=\frac{\sqrt{256}}{\sqrt{100}}=\frac{16}{10}=\frac{8}{5}\)
5. \(\sqrt{0{,}0081}=\sqrt{\frac{81 }{ 10000}}=\frac{\sqrt{81}}{\sqrt{10000}}=\frac{9}{100}=\frac{9}{100}\)
6. \(\sqrt{0{,}0289}=\sqrt{\frac{289 }{ 10000}}=\frac{\sqrt{289}}{\sqrt{10000}}=\frac{17}{100}=\frac{17}{100}\)
7. \(\sqrt{1{,}21}=\sqrt{\frac{121 }{ 100}}=\frac{\sqrt{121}}{\sqrt{100}}=\frac{11}{10}=\frac{11}{10}\)
8. \(\sqrt{0{,}0196}=\sqrt{\frac{196 }{ 10000}}=\frac{\sqrt{196}}{\sqrt{10000}}=\frac{14}{100}=\frac{7}{50}\)
9. \(\sqrt{2{,}89}=\sqrt{\frac{289 }{ 100}}=\frac{\sqrt{289}}{\sqrt{100}}=\frac{17}{10}=\frac{17}{10}\)
10. \(\sqrt{1{,}44}=\sqrt{\frac{144 }{ 100}}=\frac{\sqrt{144}}{\sqrt{100}}=\frac{12}{10}=\frac{6}{5}\)
11. \(\sqrt{0{,}0256}=\sqrt{\frac{256 }{ 10000}}=\frac{\sqrt{256}}{\sqrt{10000}}=\frac{16}{100}=\frac{4}{25}\)
12. \(\sqrt{3{,}24}=\sqrt{\frac{324 }{ 100}}=\frac{\sqrt{324}}{\sqrt{100}}=\frac{18}{10}=\frac{9}{5}\)