Bonjour j'espère que vous pourrez m'aider
Calculer chaque expression numérique : A = 65 - (18+ 3 x 9) + 7× 3
B = (32-4 x 7) × 3-2
C = 57- (3 + 8) X 4+1
D = 2 × (3 x 5-1)-5X (1+1 X 4)
Calculer chaque expression numérique : A = 65 - (18+ 3 x 9) + 7× 3
B = (32-4 x 7) × 3-2
C = 57- (3 + 8) X 4+1
D = 2 × (3 x 5-1)-5X (1+1 X 4)
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Verified answer
Bonsoir,
A = 65 - (18+ 3 x 9) + 7× 3
= 62-(18+27) +21
= 62 -45 +21
= 38
B = (32-4 x 7) × 3-2
= (32 -28) *3-2
= 4*3 -2
= 12-2
= 10
C = 57- (3 + 8) X 4+1
= 57-( 11)*4+1
= 57-44+1
= 14
D = 2 × (3 x 5-1)-5X (1+1 X 4)
= 2* (15-1) -5*(1+4)
=2* 14 -5*5
= 28 -25
= 3