Question

Efetue as adições Algébricas :
A) (+3)-(+5)-(-10)
B)(+2)+(-6)-(+5)+(+2)
C)(-5)-(-8)+(-7)-(-9)+(-3)
D)(-2)-(-4)-(+7)-(-2)+(-12)​

Answer 1

a) +3-(-5)-(-10)

=+3-5+10

=+8

b)+2+(-6)-(+5)+(+2)

=+2-6-5+2

=-7

c)-5-(-8)+(-7)-(-9)+(-3)

=-5+8-7+9-3

=+2

d)-2-(-4)-(+7)-(-2)+(-12)

=-2+4-7+2-12

=-15