UKMT Grey Kangaroo, 2025

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

Ohad writes the four digits 2, 0, 2 and 5, in some order, in the boxes shown. He then does the sum he has created. $\square - \square + \square - \square$ What is the smallest value that Ohad could obtain?

(A) $-7$ (B) $-6$ (C) $-5$ (D) $-4$ (E) $-3$

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