AlgebraDifficulty 1.0JuniorFind the answerUnited Kingdom
What is the value of 2−(3−4)−(5−6−7)?
(A) 11 (B) 9 (C) 5 (D) −5 (E) −7
Want a route through all this instead of an archive? The track
puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.