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- \(2.(-5)-3.(-9)-10\)
- \(-12+45:(-9)\)
- \(5.(-4)-10.(-2)-2\)
- \(10+13-15.(-4)\)
- \(-7.\sqrt{\frac{1}{16}}-\left[(\frac{12}{6}-9)-(-2)^3\right]\)
- \(5.3^2+(5.3)^2\)
- \((-2).(-2)+5\)
- \(3+2.(7^2-6)\)
- \((-11).(-19)+13\)
- \(2+7.5-15:5+3\)
- \(4+17-7.(-4)\)
- \((-14).(-16)+16\)
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Verbetersleutel
- \(2.(-5)-3.(-9)-10=-10+27-10=7\)
- \(-12+45:(-9)=-12+ (-5)=-17\)
- \(5.(-4)-10.(-2)-2=-20+20-2=-2\)
- \(10+13-15.(-4)=10+13+60=83\)
- \(-7.\sqrt{\frac{1}{16}}-\left[(\frac{12}{6}-9)-(-2)^3\right]=-7.\frac{1}{4}-\left[(2-9)+8\right]=\frac{-7}{4}-\left[(-7)+8\right]=\frac{-7}{4}-\left[1\right]=\frac{-11}{4}\)
- \(5.3^2+(5.3)^2=5.3^2+(15)^2=5.9+225=45+225=270\)
- \((-2).(-2)+5=4+5=9\)
- \(3+2.(7^2-6)=3+2.(49-6)=3+2.(43)=3+86=89\)
- \((-11).(-19)+13=209+13=222\)
- \(2+7.5-15:5+3=2+35-3+3=37\)
- \(4+17-7.(-4)=4+17+28=49\)
- \((-14).(-16)+16=224+16=240\)