Rekenen met wortels (reeks 4)

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

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Verbetersleutel

1. \(\sqrt{ 100 - 64}=\sqrt{36} = 6\)
2. \(\sqrt{ 81 + 144}=\sqrt{225} = 15\)
3. \(\sqrt{ 9 + 16}=\sqrt{25} = 5\)
4. \(\sqrt{ 100 - 36}=\sqrt{64} = 8\)
5. \(\sqrt{ 169 } - \sqrt{ 144 }=13-12=1\)
6. \(\sqrt{ 169 - 144}=\sqrt{25} = 5\)
7. \(\sqrt{ 25 - 9}=\sqrt{16} = 4\)
8. \(\sqrt{ 25 - 16}=\sqrt{9} = 3\)
9. \(\sqrt{ 25 } + \sqrt{ 144 }=5+12=17\)
10. \(\sqrt{ 9 } + \sqrt{ 16 }=3+4=7\)
11. \(\sqrt{ 36 + 64}=\sqrt{100} = 10\)
12. \(\sqrt{ 100 } - \sqrt{ 36 }=10-6=4\)