Haakjesregel (intermezzo)

Hoofdmenu Eentje per keer  🖨

Werk de haakjes weg

1. \(-(+7)-(-8)=\)
2. \(-(+2)+(-7)=\)
3. \(-(-2)-(-2)=\)
4. \(-(+3)+(-8)=\)
5. \(-(-4)+(-3)=\)
6. \(-(-5)-(+7)=\)
7. \(-(-10)-(-1)=\)
8. \(-7-(+7)=\)
9. \(-(+1)-(-5)=\)
10. \(-(+1)-(-6)=\)
11. \(-4-(+6)=\)
12. \(1-(-12)=\)

---

Werk de haakjes weg

Verbetersleutel

1. \(-(+7)-(-8)=-7+8\)
2. \(-(+2)+(-7)=-2-7\)
3. \(-(-2)-(-2)=2+2\)
4. \(-(+3)+(-8)=-3-8\)
5. \(-(-4)+(-3)=4-3\)
6. \(-(-5)-(+7)=5-7\)
7. \(-(-10)-(-1)=10+1\)
8. \(-7-(+7)=-7-7\)
9. \(-(+1)-(-5)=-1+5\)
10. \(-(+1)-(-6)=-1+6\)
11. \(-4-(+6)=-4-6\)
12. \(1-(-12)=1+12\)