Rekenen met wortels (reeks 4)

Hoofdmenu Eentje per keer  🖨

Reken uit

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

---

Reken uit

Verbetersleutel

1. \(\sqrt{ 9 + 16}=\sqrt{25} = 5\)
2. \(\sqrt{ 81 } + \sqrt{ 144 }=9+12=21\)
3. \(\sqrt{ 25 } - \sqrt{ 9 }=5-3=2\)
4. \(\sqrt{ 9 } + \sqrt{ 16 }=3+4=7\)
5. \(\sqrt{ 225 - 81}=\sqrt{144} = 12\)
6. \(\sqrt{ 81 + 144}=\sqrt{225} = 15\)
7. \(\sqrt{ 25 - 16}=\sqrt{9} = 3\)
8. \(\sqrt{ 36 + 64}=\sqrt{100} = 10\)
9. \(\sqrt{ 25 } + \sqrt{ 144 }=5+12=17\)
10. \(\sqrt{ 169 } - \sqrt{ 25 }=13-5=8\)
11. \(\sqrt{ 169 - 25}=\sqrt{144} = 12\)
12. \(\sqrt{ 225 } - \sqrt{ 144 }=15-12=3\)