Question

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

Answer 1

 = 217 + 43 - 217 - 23

 = (217-217)+(43-23)

 = 0 + 20 = 20

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Answer 2

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

=217+[260+23]

=217+283

=500

Answer 3

=2017+43-2017-23

=(2017-2017)+(43-23)

=20

Answer 4

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

\(=217-197\)

\(=20\)

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Answer 5

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

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

= 217 + (-197)

= 20.

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