Reken uit
- \(+(+6)+(-6)+(+2)-(+5)+(+2)=\)
- \(-(-6)-(-8)-(-2)+(+6)-(-5)=\)
- \(3-1+6-8+2=\)
- \(-(-7)+(-9)-(+6)+(+4)+(+4)=\)
- \(4+1+1-9+6=\)
- \(-2-5-1+5-1=\)
- \(7+1+6+2-1=\)
- \(8+2+5-6+3=\)
- \(4+2+2-9+2=\)
- \(-2-1+9+1-9=\)
- \(+(+6)+(-5)+(+7)+(-9)-(+9)=\)
- \(-1-4+1+1+2=\)
Reken uit
Verbetersleutel
- \(+(+6)+(-6)+(+2)-(+5)+(+2)=+6-6+2-5+2=-1\)
- \(-(-6)-(-8)-(-2)+(+6)-(-5)=+6+8+2+6+5=27\)
- \(3-1+6-8+2=2\)
- \(-(-7)+(-9)-(+6)+(+4)+(+4)=+7-9-6+4+4=0\)
- \(4+1+1-9+6=3\)
- \(-2-5-1+5-1=-4\)
- \(7+1+6+2-1=15\)
- \(8+2+5-6+3=12\)
- \(4+2+2-9+2=1\)
- \(-2-1+9+1-9=-2\)
- \(+(+6)+(-5)+(+7)+(-9)-(+9)=+6-5+7-9-9=-10\)
- \(-1-4+1+1+2=-1\)