Reken uit
- \(80-20:5+9\)
- \(12-22+4\)
- \(-15+3.(-16)\)
- \((-19).(-4)+8\)
- \(100-20:5+13\)
- \(72-18:6+9\)
- \(19+72:(-9)\)
- \(100-20:4+5\)
- \((-18).(-9)+11\)
- \(21+20+24\)
- \(5+20.(-13)\)
- \(-1-23+2\)
Reken uit
Verbetersleutel
- \(80-20:5+9=80-4+9=85\)
- \(12-22+4=-6\)
- \(-15+3.(-16)=-15+(-48)=-63\)
- \((-19).(-4)+8=76+8=84\)
- \(100-20:5+13=100-4+13=109\)
- \(72-18:6+9=72-3+9=78\)
- \(19+72:(-9)=19+ (-8)=11\)
- \(100-20:4+5=100-5+5=100\)
- \((-18).(-9)+11=162+11=173\)
- \(21+20+24=65\)
- \(5+20.(-13)=5+(-260)=-255\)
- \(-1-23+2=-22\)