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VTMO 2015 — Grade 4 — semifinal Question 9

VTMO · VTMO 2015 — Grade 4 — semifinal

Question 9

Three-digit numbers $UVW$ and $XYZ$ use six distinct digits. What is the maximum of $\overline{UVW}-\overline{XYZ}$?
  1. $678$
  2. $864$
  3. $885$
  4. $888$
  5. $975$