Algebra 1SuperchallengeFoundations ShareFoundations · Superchallenge problemEvaluate 1−2+3−4+5−⋯+99−100\;1 - 2 + 3 - 4 + 5 - \cdots + 99 - 1001−2+3−4+5−⋯+99−100.Check Show answer Walk through it step by step Practice more like this Review this concept