Question

217+[43+(-217)+(-23)]

Answer 1

217+[43+(-217)+(-23)

=217+[(-174)+(-23)]

=217+(-197)

=20

Answer 2

\(217+\left[43+\left(-217\right)+\left(-23\right)\right]\)

=217+\(\left[\left(-174\right)+\left(-23\right)\right]\)

=217+(-197)

=20

Answer 3

217 + [43 + (-217) + (-23)]

= 217 + 43 + (-217) + (-23)

= [217 + (-217)] + [43 + (-23)]

= 0 + 20

= 20

Answer 4

217 + [43 + (-217) + (-23)]
= 217 + 43 + (-217) + (-23)
= [217 + (-217)] + [43 + (-23)]
= 0 + 20
= 20