Question

Resolva as expressões numéricas a seguir:

a) [(-3) . ((-3) . (-3) + (+ 5)] : 2

b) (- 100) : (- 25) + (- 3) . (- 3) -5 . 5 – (2 . 2. 2) + 3 .3

c) – (5 . 5) + 1 – 1 + (- 3) . (- 3)

d) – [(- 72) : (- 6)] – [(+ 1) . (+ 13)] + 2 . 7 + (+ 2)

e) 0 – 15 + 2 . 3 – [(+ 3) . (+ 4)] + 20 + 3 . 5 – 300 : 10 +25​

Answer 1

Explicação passo-a-passo:

a) [(-3)(-3)(-3)+(5)]÷2 =

[-27+5]÷2 =

-22÷2 = -11

b) (-100)÷(-25)+(-3)(-3)-5×5-(2×2×2)+3×3 =

+4+9-25-(8)+9 =

+4+9-25+8+9 =

+4+9+8+9-25 =

30-25 = +5

c)-(5×5)+1-1+(-3)(-3) =

-25+1-1+9 =

-25+9 = -16

d) -[(-72)÷(-6)]-[(+1)×(+13)]+2×7+(+2) =

-[+12]-[+13]+14+2 =

-12-13+14+2 =

-25+16 = -9

e) 0-15+2×3-[(+3)×(+4)]+20+3×5-300÷10+25 =

0-15+6-[+12]+20+15-30+25 =

0-15+6-12+20+15-30+25 =

0+6+20+15+25-15-12-30 =

+66-57 = +9

Bom estudo!!!!

23/09