Question

evaluate 27_(13+4_(8+4_(1+3))

Answer 1

27-(13+4-(8+4-(1+3))

=27 - (13 +4 -(8 +4 -4))

=27 -(13 +4 -8)

=27 -(13-4)

=27 - 9

=18

Answer 2

27-13+4-8+4-1+3
=14+4-8+4-1+3
=18-8+4-1+3
=10+4-1+3
=14-1+3
=13+3
=16
I think it helps you.