Question

Calculati a-b-c+d daca
a)-3-(-4)+(-5)-(-3)-(+2)
b)-4+(-1)-(-2)-(-6)+(-4)
c)-6+(-3)-5-3+(-5)-(-4)
d)-3+(-8)-(-2)-(+11)-(-6)

Answer 1

a)

$- 3 - ( - 4) + ( - 5) - ( - 3) - ( + 2)$

$- 3 + 4 - 5 + 3 - 2$

$- 3$

b)

$- 4 + ( - 1) - ( - 2) - ( - 6) + ( - 4)$

$- 4 - 1 + 2 + 6 - 4$

$- 1$

c)

$- 6 + ( - 3) - 5 - 3 + ( - 5) - ( - 4)$

$- 6 - 3 - 5 - 3 - 5 + 4$

$- 18$

d)

$- 3 + ( - 8) - ( - 2) - ( + 11) - ( - 6)$

$- 3 - 8 + 2 - 11 + 6$

$- 14$

Answer 2

a= -3+4-5+3-2= -3
b= -4-1+2+6-4= -1
c= -6-3-5-3-5+4= -18
d= -3-8+2-11+6= -14

a+b+c+d= -3+(-1)+(-18)+(-14)= -3-1-18-14= -36