Haakjesregel (intermezzo)

Hoofdmenu Eentje per keer  🖨

Werk de haakjes weg

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

---

Werk de haakjes weg

Verbetersleutel

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