Question

calcule o valor das expressões A) 5+(-3)2+1=1
B) 10+(-2)3-4=
C)12-1+(-4)2=
D) (-1)5+3-9=
E) 18-(+7)+3 2=​

Answer 1

A) 5+(-3)2+1=1

5+(-6)+1=1

5-6+1-1=

1+0= 1

B) 10+(-2)3-4=

10+(-6)-4=

10-6-4=

10-10= 0

C)12-1+(-4)2=

12-1+(-8)

12-1-8

12-9= 3

D) (-1)5+3-9=

(-5)+3-9

-5+3-9

-5-6= -11

E) 18-(+7)+3 2=​

18-7+6

11+6= 17