- Calculus class calculations (AREAS with 5 letters)
- Polygon calculations (AREAS with 5 letters)
- Class often taken before calculus: Abbr. (TRIGON with 6 letters)
- Approach to arithmetic that emphasizes underlying ideas rather than exact calculations (FUZZYMATH with 9 letters)
- Calculus calculation: Abbr. (e.g. LIM with 3 letters)
- Handicapper's calculations (ODDS with 4 letters)
- One working on a calculus problem: Abbr. (DDS with 3 letters)
- Actuarial calculations (RISKS with 5 letters)
- Swiss calculus pioneer Leonhard (EULER with 5 letters)
- Math calculations (e.g. SLOPES with 6 letters)