Rekenen met wortels (reeks 4)

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1. \(\sqrt{ 25 - 16}\)
2. \(\sqrt{ 36 + 64}\)
3. \(\sqrt{ 25 - 9}\)
4. \(\sqrt{ 169 - 25}\)
5. \(\sqrt{ 81 + 144}\)
6. \(\sqrt{ 225 - 81}\)
7. \(\sqrt{ 169 } - \sqrt{ 25 }\)
8. \(\sqrt{ 9 + 16}\)
9. \(\sqrt{ 100 } - \sqrt{ 36 }\)
10. \(\sqrt{ 100 - 64}\)
11. \(\sqrt{ 169 } - \sqrt{ 144 }\)
12. \(\sqrt{ 25 } - \sqrt{ 16 }\)

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Verbetersleutel

1. \(\sqrt{ 25 - 16}=\sqrt{9} = 3\)
2. \(\sqrt{ 36 + 64}=\sqrt{100} = 10\)
3. \(\sqrt{ 25 - 9}=\sqrt{16} = 4\)
4. \(\sqrt{ 169 - 25}=\sqrt{144} = 12\)
5. \(\sqrt{ 81 + 144}=\sqrt{225} = 15\)
6. \(\sqrt{ 225 - 81}=\sqrt{144} = 12\)
7. \(\sqrt{ 169 } - \sqrt{ 25 }=13-5=8\)
8. \(\sqrt{ 9 + 16}=\sqrt{25} = 5\)
9. \(\sqrt{ 100 } - \sqrt{ 36 }=10-6=4\)
10. \(\sqrt{ 100 - 64}=\sqrt{36} = 6\)
11. \(\sqrt{ 169 } - \sqrt{ 144 }=13-12=1\)
12. \(\sqrt{ 25 } - \sqrt{ 16 }=5-4=1\)