Rekenen met wortels (reeks 2)

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1. \(\sqrt{0{,}25}\)
2. \(\sqrt{3{,}24}\)
3. \(\sqrt{0{,}0169}\)
4. \(\sqrt{0{,}81}\)
5. \(\sqrt{0{,}0004}\)
6. \(\sqrt{1{,}21}\)
7. \(\sqrt{0{,}0025}\)
8. \(\sqrt{2{,}25}\)
9. \(\sqrt{0{,}0324}\)
10. \(\sqrt{0{,}09}\)
11. \(\sqrt{0{,}0064}\)
12. \(\sqrt{0{,}0144}\)

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Verbetersleutel

1. \(\sqrt{0{,}25}=\sqrt{\frac{25 }{ 100}}=\frac{\sqrt{25}}{\sqrt{100}}=\frac{5}{10}=\frac{1}{2}\)
2. \(\sqrt{3{,}24}=\sqrt{\frac{324 }{ 100}}=\frac{\sqrt{324}}{\sqrt{100}}=\frac{18}{10}=\frac{9}{5}\)
3. \(\sqrt{0{,}0169}=\sqrt{\frac{169 }{ 10000}}=\frac{\sqrt{169}}{\sqrt{10000}}=\frac{13}{100}=\frac{13}{100}\)
4. \(\sqrt{0{,}81}=\sqrt{\frac{81 }{ 100}}=\frac{\sqrt{81}}{\sqrt{100}}=\frac{9}{10}=\frac{9}{10}\)
5. \(\sqrt{0{,}0004}=\sqrt{\frac{4 }{ 10000}}=\frac{\sqrt{4}}{\sqrt{10000}}=\frac{2}{100}=\frac{1}{50}\)
6. \(\sqrt{1{,}21}=\sqrt{\frac{121 }{ 100}}=\frac{\sqrt{121}}{\sqrt{100}}=\frac{11}{10}=\frac{11}{10}\)
7. \(\sqrt{0{,}0025}=\sqrt{\frac{25 }{ 10000}}=\frac{\sqrt{25}}{\sqrt{10000}}=\frac{5}{100}=\frac{1}{20}\)
8. \(\sqrt{2{,}25}=\sqrt{\frac{225 }{ 100}}=\frac{\sqrt{225}}{\sqrt{100}}=\frac{15}{10}=\frac{3}{2}\)
9. \(\sqrt{0{,}0324}=\sqrt{\frac{324 }{ 10000}}=\frac{\sqrt{324}}{\sqrt{10000}}=\frac{18}{100}=\frac{9}{50}\)
10. \(\sqrt{0{,}09}=\sqrt{\frac{9 }{ 100}}=\frac{\sqrt{9}}{\sqrt{100}}=\frac{3}{10}=\frac{3}{10}\)
11. \(\sqrt{0{,}0064}=\sqrt{\frac{64 }{ 10000}}=\frac{\sqrt{64}}{\sqrt{10000}}=\frac{8}{100}=\frac{2}{25}\)
12. \(\sqrt{0{,}0144}=\sqrt{\frac{144 }{ 10000}}=\frac{\sqrt{144}}{\sqrt{10000}}=\frac{12}{100}=\frac{3}{25}\)