Rekenen met wortels (reeks 2)

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1. \(\sqrt{0{,}0036}\)
2. \(\sqrt{0{,}0004}\)
3. \(\sqrt{0{,}36}\)
4. \(\sqrt{0{,}0009}\)
5. \(\sqrt{0{,}25}\)
6. \(\sqrt{0{,}49}\)
7. \(\sqrt{0{,}0016}\)
8. \(\sqrt{2{,}89}\)
9. \(\sqrt{0{,}09}\)
10. \(\sqrt{0{,}0081}\)
11. \(\sqrt{0{,}0144}\)
12. \(\sqrt{0{,}0225}\)

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Verbetersleutel

1. \(\sqrt{0{,}0036}=\sqrt{\frac{36 }{ 10000}}=\frac{\sqrt{36}}{\sqrt{10000}}=\frac{6}{100}=\frac{3}{50}\)
2. \(\sqrt{0{,}0004}=\sqrt{\frac{4 }{ 10000}}=\frac{\sqrt{4}}{\sqrt{10000}}=\frac{2}{100}=\frac{1}{50}\)
3. \(\sqrt{0{,}36}=\sqrt{\frac{36 }{ 100}}=\frac{\sqrt{36}}{\sqrt{100}}=\frac{6}{10}=\frac{3}{5}\)
4. \(\sqrt{0{,}0009}=\sqrt{\frac{9 }{ 10000}}=\frac{\sqrt{9}}{\sqrt{10000}}=\frac{3}{100}=\frac{3}{100}\)
5. \(\sqrt{0{,}25}=\sqrt{\frac{25 }{ 100}}=\frac{\sqrt{25}}{\sqrt{100}}=\frac{5}{10}=\frac{1}{2}\)
6. \(\sqrt{0{,}49}=\sqrt{\frac{49 }{ 100}}=\frac{\sqrt{49}}{\sqrt{100}}=\frac{7}{10}=\frac{7}{10}\)
7. \(\sqrt{0{,}0016}=\sqrt{\frac{16 }{ 10000}}=\frac{\sqrt{16}}{\sqrt{10000}}=\frac{4}{100}=\frac{1}{25}\)
8. \(\sqrt{2{,}89}=\sqrt{\frac{289 }{ 100}}=\frac{\sqrt{289}}{\sqrt{100}}=\frac{17}{10}=\frac{17}{10}\)
9. \(\sqrt{0{,}09}=\sqrt{\frac{9 }{ 100}}=\frac{\sqrt{9}}{\sqrt{100}}=\frac{3}{10}=\frac{3}{10}\)
10. \(\sqrt{0{,}0081}=\sqrt{\frac{81 }{ 10000}}=\frac{\sqrt{81}}{\sqrt{10000}}=\frac{9}{100}=\frac{9}{100}\)
11. \(\sqrt{0{,}0144}=\sqrt{\frac{144 }{ 10000}}=\frac{\sqrt{144}}{\sqrt{10000}}=\frac{12}{100}=\frac{3}{25}\)
12. \(\sqrt{0{,}0225}=\sqrt{\frac{225 }{ 10000}}=\frac{\sqrt{225}}{\sqrt{10000}}=\frac{15}{100}=\frac{3}{20}\)