Répondre :
Réponse :
A= (+3)+(-7)
=3-7
=-4
D= 3-8
= -5
G=(-4)-(+7)+(-9)-(-8)+(-9)
= -4 -7 -9 +8 -9
= - 29 + 8
= - 21
K=-3-(-8)-(+9)+9+4+5-7
= - 3 + 8 - 9 +9 +4 +5 - 7
= - 19 + 26
= + 7
B= (-5)+(-7)
= -5 -7
= - 12
E= -6-7
= - 13
C= (-3)+(+9)
= - 3 + 9
= + 6
H=(-9)+(-7)-(+3)+(-7)-(-4)-(-8)
= - 9 - 7 - 3 - 7 + 4 + 8
= - 26 + 12
= - 14
M= -4-(5-6-(-3)+(-9))+(-4)-(3+(-8))
= - 4 - (5-6+3-9) -4 - (3 - 8)
= - 4 -5 + 6 - 3 + 9 - 4 - 3 + 8
= - 19 + 23
= + 4
F= -4-(-9)
= - 4 + 9
= +5
I= 4-7-8-9-6+4
= + 8 - 30
= - 22
L=4-(3-(-2))+(-7)
= 4 - (3 + 2 ) - 7
= 4 - 3 - 2 - 7
= - 12 + 4
= - 8
À=3-7=(-4)
D=-5
G=(-4)-7-9+8-9=-21
K=-3+8-9+9+4+5-7=7
B=(-5)-7=-12
E=-13
C=(-3)+9=6
H=(-9)-7-3-7+4+8= -14
M=-4-(5-6-(-3-9))-4-(3-8)=-4-(-1-(-12))-4-(-5)
= -4-(-1+12)-4+12=-4-11+8=-7
F=-4+9=5
I=8-30=-22
L=4-(3+2)-7=4-5-7=-8
D=-5
G=(-4)-7-9+8-9=-21
K=-3+8-9+9+4+5-7=7
B=(-5)-7=-12
E=-13
C=(-3)+9=6
H=(-9)-7-3-7+4+8= -14
M=-4-(5-6-(-3-9))-4-(3-8)=-4-(-1-(-12))-4-(-5)
= -4-(-1+12)-4+12=-4-11+8=-7
F=-4+9=5
I=8-30=-22
L=4-(3+2)-7=4-5-7=-8