MIDDLETOWN, Md. (AP) — Kundan Chintamaneni’s mother cannot keep up with the star calculus student’s use of sticky notes and scrap paper to solve the latest problem in the array of competitions he is always entering.

The Middletown High School sophomore leaves sheets of paper with precisely written mathematical equations chock-full of Greek symbols and parentheses scattered about his house. Sometimes he sits at the empty formal dining room table to put the final touches on regional and statewide math competition answers.