Question

01,Efetue
A(-3)-(+5)+(+2)
B,(+2)-(-6)-(+5)+(+2)
C,(-5)-(-8)+(-7)-(-9)+(-3)
D,(-2)-(-4)-(-4)-(+7)-(-2)+(-12)
02,Calcule
A,+8+7
B,9+3
C,-10+5
D,-2-8
E,-9-12
F-8+8

Answer 1

Olá,

Vamos lá,

01,Efetue
A(-3)-(+5)+(+2) = -3 -5 + 2= -6
B,(+2)-(-6)-(+5)+(+2) = 2 + 6 - 5 +2= 10-5=5
C,(-5)-(-8)+(-7)-(-9)+(-3) = -5+8-7+9-3= 2
D,(-2)-(-4)-(-4)-(+7)-(-2)+(-12)=-2+4+4-7+2-12=-11



02,Calcule
A,+8+7 = 15
B,9+3 =12
C,-10+5 =-5
D,-2-8 = -10
E,-9-12=-21
F-8+8 =0