Question

25- Resolva as expressões numéricas:
(-3)2-4-(-1)+52 =
15+ (-4).(+3)- 10 =
52 +V9 - [(+20):(-4)+ 3 ) =

Answer 1

Resposta:

a)

-3.2-4+1+52=

-6-4+53=

-10+53=

43

b)

15-4.(+3)-10=

15-12-10=

15-22=

-7

c)

52+3 -(+20):(-4)-3=

52+3-20:4-3=

52+3-5-3=

55-8=

47

espero ter ajudado :)