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- \(15+12:(-3)\)
- \(30-10:2+4\)
- \(-6+9:(-3)\)
- \(14+9.(-13)\)
- \(50-10:2+6\)
- \(72-12:3+19\)
- \(16+14.(-5)\)
- \(-6+15.(-2)\)
- \(10+11.(-19)\)
- \(24+19-10\)
- \(84-12:4+2\)
- \(1-20+29\)
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Verbetersleutel
- \(15+12:(-3)=15+ (-4)=11\)
- \(30-10:2+4=30-5+4=29\)
- \(-6+9:(-3)=-6+ (-3)=-9\)
- \(14+9.(-13)=14+(-117)=-103\)
- \(50-10:2+6=50-5+6=51\)
- \(72-12:3+19=72-4+19=87\)
- \(16+14.(-5)=16+(-70)=-54\)
- \(-6+15.(-2)=-6+(-30)=-36\)
- \(10+11.(-19)=10+(-209)=-199\)
- \(24+19-10=33\)
- \(84-12:4+2=84-3+2=83\)
- \(1-20+29=10\)