Haakjesregel (intermezzo)

Hoofdmenu Eentje per keer  🖨

Werk de haakjes weg

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

---

Werk de haakjes weg

Verbetersleutel

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