Question

Urgente por favorr ate as 20:00
a) + ( - 18) - ( + 11) - ( - 20) + ( + 16)

B)- 12 + |+6 -15| + 7 - 8

C-[+ 240 ÷ (- 48) ]+ (64 ÷4)- (20-7)

Answer 1

a)+(-18)-(+11)-(-20)+(+16)=

-18 -11 +20 +16=

+29+36=

+65

b)-12 +|+6 -15| +7 -8=

-12 -6 -15 -7 -8=

+18 +22 -8=

+40 -8=

-32

c)[ 240 : (-48) ] + 16 - 13

-5 + 16 - 13

-18 + 16

- 2