Bonjour
Effectuer les calculs en détaillant les opération s
a=8-5x6 = 8 - 30 = - 22
b=2-35:7+1 = 2 - 5 + 1 = 2 + 1 - 5 = 3 - 5 = - 2
c=3x5-(5-12) = 15 - (- 7) = 15 + 7 = 22
d=4x(2-3x9) = 4 x (2 - 27) = 4 x - 25 = - 100
e=48:(2-12:4-7)-4 = 48 : (2 - 3 - 7) = 48 : (2 - 10) = 48 : (- 8) = - 6.
f=2-6x(-3) = 2 + 18 = 20.
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5x(-11)+25 = - 55 + 25 = - 30
g=7+3² = 7 + 9 = 16
h=2-4x5² = 2 - 4 x 25 = 2 - 100 = - 98
i=4+(-5+4x3²) = 4 + (- 5 + 4 x 9) = 4 + (- 5 + 36) = 4 + 31 = 35.
