Répondre :
A= 2*(8*(6-4)+20)
= 2*(8*(2)+20)
=2*(16+20)
=2*36
=72
B=8+3*(18-4):7
= 8+3*14:7
= 8+3*2
=8+6=14
C=(4+3*2)*(7-12:3)
= (4+6)*(7-4)
= 10*3=30
Voila =)
= 2*(8*(2)+20)
=2*(16+20)
=2*36
=72
B=8+3*(18-4):7
= 8+3*14:7
= 8+3*2
=8+6=14
C=(4+3*2)*(7-12:3)
= (4+6)*(7-4)
= 10*3=30
Voila =)