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- \(8-12=\)
- \(-3-5=\)
- \(-5+6=\)
- \(-12+3=\)
- \(8-8=\)
- \(-9-3=\)
- \(-8+7=\)
- \(2-2=\)
- \(2-4=\)
- \(3-7=\)
- \(8-11=\)
- \(2-3=\)
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Verbetersleutel
- \(8-12=-4\)
- \(-3-5=-8\)
- \(-5+6=1\)
- \(-12+3=-9\)
- \(8-8=0\)
- \(-9-3=-12\)
- \(-8+7=-1\)
- \(2-2=0\)
- \(2-4=-2\)
- \(3-7=-4\)
- \(8-11=-3\)
- \(2-3=-1\)