A = (-3) - (+6) + (-5) + (-4)
A =
A =
A =
C = (-8) + (+5)+(-7)-(-4)
C =
C =
C =
E = (-5)-(-5) + (-5) - (+5) + 5
E =
E =
E =
G = (-3,5) + (-1,5)-(-2,5) + (+4,5)
G =
G =
G =
B=(+6) + (-7)-(+3)-(-5)
B =
B =
B =
D= (+2)-(-3) + (-12)-(-24)
D =
D =
D =
F = 22-17 + (-23) - (+14) + 12
F =
F =
F =
H=4,7-(-3,3)+(-2,2)-(+3,8)
H =
H =
H =
Exo 2 sur la photo, c’est le même que ce que j’ai écrit
Merciiiii
A =
A =
A =
C = (-8) + (+5)+(-7)-(-4)
C =
C =
C =
E = (-5)-(-5) + (-5) - (+5) + 5
E =
E =
E =
G = (-3,5) + (-1,5)-(-2,5) + (+4,5)
G =
G =
G =
B=(+6) + (-7)-(+3)-(-5)
B =
B =
B =
D= (+2)-(-3) + (-12)-(-24)
D =
D =
D =
F = 22-17 + (-23) - (+14) + 12
F =
F =
F =
H=4,7-(-3,3)+(-2,2)-(+3,8)
H =
H =
H =
Exo 2 sur la photo, c’est le même que ce que j’ai écrit
Merciiiii
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Je t’explique :
Pour le A=(-3)-(+6)+(-5)+(-4)
Tu dois faire d’abord le (-5)+(-4) ce qui donne A=(-3)-(+6)+9
A=3-+9
A=-6
Pour les autres calculs c’est la même chose n’oublie jamais les priorités de parenthèses, la division et les multiplications
A = -9-6-5-4
A = -24
B = (+6)+(-7)-(+3)-(-5)
B = 6-7-3+5
B = 1
C = (-8) + (+5)+(-7)-(-4)
C = -8+5-7+4
C = -6
D = (+2)-(-3)+(-12)-(-24)
D = 2+3-12+24
D = 17
E = (-5)-(-5) + (-5) - (+5) + 5
E = -5+5-5-5+5
E = -5
G = (-3,5) + (-1,5)-(-2,5) + (+4,5)
G = -3,5-1,5+2,5+4,5
G = 2
F = 22-17 + (-23) - (+14) + 12
F = 22-17-23-14+12
F = -20
H=4,7-(-3,3)+(-2,2)-(+3,8)
H = 4,7+3,3-2,2-3,8
H = 2,8
Voilà mes réponses ^^