Répondre :
bonsoir,
A= 7+25x2-9
A= 7+50-9
A= 57-9
A=48
C=7x(4+(1+2)x5)
=7x(4+3x5)
=7x19
=133
E=45-3x7
E=45-21
E=24
B=28-(5+6x3)
B=28-23
B=5
D=18-3+5
D=15+5
D=20
F=120-(4+5x7)
F=120-39
F=81
A= 7+25x2-9
A= 7+50-9
A= 57-9
A=48
C=7x(4+(1+2)x5)
=7x(4+3x5)
=7x19
=133
E=45-3x7
E=45-21
E=24
B=28-(5+6x3)
B=28-23
B=5
D=18-3+5
D=15+5
D=20
F=120-(4+5x7)
F=120-39
F=81