# Rekenen met wortels (reeks 2)

#### Reken uit

1. $$\sqrt{0,0081}$$
2. $$\sqrt{0,0225}$$
3. $$\sqrt{0,0169}$$
4. $$\sqrt{0,0049}$$
5. $$\sqrt{0,64}$$
6. $$\sqrt{0,0016}$$
7. $$\sqrt{0,0196}$$
8. $$\sqrt{3,24}$$
9. $$\sqrt{1,44}$$
10. $$\sqrt{3,61}$$
11. $$\sqrt{0,0289}$$
12. $$\sqrt{0,0144}$$

#### Reken uit

##### Verbetersleutel

1. $$\sqrt{0,0081}=\sqrt{\frac{81 }{ 10000}}=\frac{\sqrt{81}}{\sqrt{10000}}=\frac{9}{100}=\frac{9}{100}$$
2. $$\sqrt{0,0225}=\sqrt{\frac{225 }{ 10000}}=\frac{\sqrt{225}}{\sqrt{10000}}=\frac{15}{100}=\frac{3}{20}$$
3. $$\sqrt{0,0169}=\sqrt{\frac{169 }{ 10000}}=\frac{\sqrt{169}}{\sqrt{10000}}=\frac{13}{100}=\frac{13}{100}$$
4. $$\sqrt{0,0049}=\sqrt{\frac{49 }{ 10000}}=\frac{\sqrt{49}}{\sqrt{10000}}=\frac{7}{100}=\frac{7}{100}$$
5. $$\sqrt{0,64}=\sqrt{\frac{64 }{ 100}}=\frac{\sqrt{64}}{\sqrt{100}}=\frac{8}{10}=\frac{4}{5}$$
6. $$\sqrt{0,0016}=\sqrt{\frac{16 }{ 10000}}=\frac{\sqrt{16}}{\sqrt{10000}}=\frac{4}{100}=\frac{1}{25}$$
7. $$\sqrt{0,0196}=\sqrt{\frac{196 }{ 10000}}=\frac{\sqrt{196}}{\sqrt{10000}}=\frac{14}{100}=\frac{7}{50}$$
8. $$\sqrt{3,24}=\sqrt{\frac{324 }{ 100}}=\frac{\sqrt{324}}{\sqrt{100}}=\frac{18}{10}=\frac{9}{5}$$
9. $$\sqrt{1,44}=\sqrt{\frac{144 }{ 100}}=\frac{\sqrt{144}}{\sqrt{100}}=\frac{12}{10}=\frac{6}{5}$$
10. $$\sqrt{3,61}=\sqrt{\frac{361 }{ 100}}=\frac{\sqrt{361}}{\sqrt{100}}=\frac{19}{10}=\frac{19}{10}$$
11. $$\sqrt{0,0289}=\sqrt{\frac{289 }{ 10000}}=\frac{\sqrt{289}}{\sqrt{10000}}=\frac{17}{100}=\frac{17}{100}$$
12. $$\sqrt{0,0144}=\sqrt{\frac{144 }{ 10000}}=\frac{\sqrt{144}}{\sqrt{10000}}=\frac{12}{100}=\frac{3}{25}$$
Oefeningengenerator vanhoeckes.be/wiskunde 2021-12-02 01:46:26