How many integers between -45 and +45

How many integers between -45 and +45 can be made by adding and using each number and its opposite exactly once?
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1 Answer

The number of integers is 45-(-45)+1=45+45+1=91 (including zero, which is also an integer).

91 includes 45 and -45.

by Top Rated User (1.2m points)

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