Rekenen met wortels (reeks 2)

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1. \(\sqrt{0,16}\)
2. \(\sqrt{0,0324}\)
3. \(\sqrt{0,25}\)
4. \(\sqrt{2,89}\)
5. \(\sqrt{0,0225}\)
6. \(\sqrt{0,0361}\)
7. \(\sqrt{0,0064}\)
8. \(\sqrt{0,49}\)
9. \(\sqrt{0,0009}\)
10. \(\sqrt{0,36}\)
11. \(\sqrt{1,96}\)
12. \(\sqrt{3,61}\)

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Verbetersleutel

1. \(\sqrt{0,16}=\sqrt{\frac{16 }{ 100}}=\frac{\sqrt{16}}{\sqrt{100}}=\frac{4}{10}=\frac{2}{5}\)
2. \(\sqrt{0,0324}=\sqrt{\frac{324 }{ 10000}}=\frac{\sqrt{324}}{\sqrt{10000}}=\frac{18}{100}=\frac{9}{50}\)
3. \(\sqrt{0,25}=\sqrt{\frac{25 }{ 100}}=\frac{\sqrt{25}}{\sqrt{100}}=\frac{5}{10}=\frac{1}{2}\)
4. \(\sqrt{2,89}=\sqrt{\frac{289 }{ 100}}=\frac{\sqrt{289}}{\sqrt{100}}=\frac{17}{10}=\frac{17}{10}\)
5. \(\sqrt{0,0225}=\sqrt{\frac{225 }{ 10000}}=\frac{\sqrt{225}}{\sqrt{10000}}=\frac{15}{100}=\frac{3}{20}\)
6. \(\sqrt{0,0361}=\sqrt{\frac{361 }{ 10000}}=\frac{\sqrt{361}}{\sqrt{10000}}=\frac{19}{100}=\frac{19}{100}\)
7. \(\sqrt{0,0064}=\sqrt{\frac{64 }{ 10000}}=\frac{\sqrt{64}}{\sqrt{10000}}=\frac{8}{100}=\frac{2}{25}\)
8. \(\sqrt{0,49}=\sqrt{\frac{49 }{ 100}}=\frac{\sqrt{49}}{\sqrt{100}}=\frac{7}{10}=\frac{7}{10}\)
9. \(\sqrt{0,0009}=\sqrt{\frac{9 }{ 10000}}=\frac{\sqrt{9}}{\sqrt{10000}}=\frac{3}{100}=\frac{3}{100}\)
10. \(\sqrt{0,36}=\sqrt{\frac{36 }{ 100}}=\frac{\sqrt{36}}{\sqrt{100}}=\frac{6}{10}=\frac{3}{5}\)
11. \(\sqrt{1,96}=\sqrt{\frac{196 }{ 100}}=\frac{\sqrt{196}}{\sqrt{100}}=\frac{14}{10}=\frac{7}{5}\)
12. \(\sqrt{3,61}=\sqrt{\frac{361 }{ 100}}=\frac{\sqrt{361}}{\sqrt{100}}=\frac{19}{10}=\frac{19}{10}\)