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- \(5+3.6-22:2+3\)
- \(10+9.10-12:3+5\)
- \(-5.\sqrt{\frac{36}{49}}-\left[(\frac{-19}{12}-4)-(-2)^3\right]\)
- \(-15+2.(-13)\)
- \(-6+11.(-3)\)
- \(-12.17^2+19\)
- \(10-\sqrt{359-7.7^2}\)
- \(-20+30:(-2)\)
- \((-15).(-14)+11\)
- \((-13).(-14)+13\)
- \(9.(-2)-2.(-2)-4\)
- \(\sqrt{\dfrac{49}{25}}-\left(\dfrac{9}{10}\right)^2\)
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Verbetersleutel
- \(5+3.6-22:2+3=5+18-11+3=15\)
- \(10+9.10-12:3+5=10+90-4+5=101\)
- \(-5.\sqrt{\frac{36}{49}}-\left[(\frac{-19}{12}-4)-(-2)^3\right]=-5.\frac{6}{7}-\left[(\frac{-19}{12}-4)+8\right]=\frac{-30}{7}-\left[(\frac{-67}{12})+8\right]=\frac{-30}{7}-\left[\frac{29}{12}\right]=\frac{-563}{84}\)
- \(-15+2.(-13)=-15+(-26)=-41\)
- \(-6+11.(-3)=-6+(-33)=-39\)
- \(-12.17^2+19=-12.289+19=-3468+19=-3449\)
- \(10-\sqrt{359-7.7^2}=10-\sqrt{359-7.49}=10-\sqrt{359-343}=10-\sqrt{16}=10-4=6\)
- \(-20+30:(-2)=-20+ (-15)=-35\)
- \((-15).(-14)+11=210+11=221\)
- \((-13).(-14)+13=182+13=195\)
- \(9.(-2)-2.(-2)-4=-18+4-4=-18\)
- \(\sqrt{\dfrac{49}{25}}-\left(\dfrac{9}{10}\right)^2= \dfrac{7}{5} - \dfrac{81}{100}= \dfrac{140}{100} - \dfrac{81}{100}= \dfrac{59}{100}\)