Question

Resolva as expressões :


(A 15(-3-2)+(-7-4)

(B 25-(8-5+3)-(12-5-8)

(C (10-2)-3+(8+7-5)

(D (9-4+2)-1+(9+5-3

(E 18-[2+(-7-3+8)-10]

Answer 1

A) 15 (-3-2) + (-7-4)
15 (-5) - 7 - 4
- 75 - 11 = - 86

B) 25 - 6 - (7 - 8)
25 - 6 - (-1)
25 - 6 + 1
25 - 7 = 18

C) 8 - 3 + 10
5 + 10 = 15

D) (9 - 6) - 1 + 12 - 3
3 - 13 - 3
- 10 - 3 = -13

E) 18 - [2 + (-7 - 11) - 10]
18 - [2 + (-18) - 10]
18 - [2 - 18 -10]
18 - [-16 - 10]
18 + 26 = 44