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UKMT Junior Mathematical Challenge, 2015

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

Which of the following calculations gives the largest answer?

(A) $1 - 2 + 3 + 4$ (B) $1 + 2 - 3 + 4$ (C) $1 + 2 + 3 - 4$ (D) $1 + 2 - 3 - 4$ (E) $1 - 2 - 3 + 4$

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