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Evaluate the following expression

publish date2025/12/25 07:36:13.424317 UTC

8 + (-1) + 6 + (-8) + 1

Answer = (1)

Correct Answer

(1) 6

Explanation

Instead of working from left to right, we will use the commutative and associative properties of addition to add pairs of opposites.

Since the sum of an integer and its opposite is 0, it is helpful to identify such pairs in an addition.

Locate pairs of opposites and add them to get 0.

8 + (-1) + 6 + (-8) + 1 = 0 + 0 + 6 = 6

  • -8 and 8 are opposite
  • -1 and 1 are opposite

 

Reference

Mathematics for college students


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