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Evaluate the following expression
publish date: 2025/12/25 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
