AMC 10 2020a Problem 8

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What is the value of $1+2+3-4+5+6+7-8+\cdots+197+198+199-200?$ $\textbf{(A) } 9,800 \textbf{(B) } 9,900 \textbf{(C) } 10,000 \textbf{(D) } 10,100 \textbf{(E) } 10,200$

Dataset text NuminaMath-1.5. Quoted with source.

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9900

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