Rekenen met wortels (reeks 4)

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

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Verbetersleutel

1. \(\sqrt{ 36 + 64}=\sqrt{100} = 10\)
2. \(\sqrt{ 9 + 16}=\sqrt{25} = 5\)
3. \(\sqrt{ 169 } - \sqrt{ 25 }=13-5=8\)
4. \(\sqrt{ 225 } - \sqrt{ 144 }=15-12=3\)
5. \(\sqrt{ 225 - 144}=\sqrt{81} = 9\)
6. \(\sqrt{ 36 } + \sqrt{ 64 }=6+8=14\)
7. \(\sqrt{ 169 - 144}=\sqrt{25} = 5\)
8. \(\sqrt{ 81 + 144}=\sqrt{225} = 15\)
9. \(\sqrt{ 169 - 25}=\sqrt{144} = 12\)
10. \(\sqrt{ 81 } + \sqrt{ 144 }=9+12=21\)
11. \(\sqrt{ 100 - 64}=\sqrt{36} = 6\)
12. \(\sqrt{ 25 + 144}=\sqrt{169} = 13\)