mathematical calculations done in the
mind, just by looking at the figures. You're always
having problems shoved under your nose that you're supposed to do with
calculus, any one of which is solvable by sight arithmetic.
- Study and Education (13 Aug. 64) n. a coined
term used to describe the
art of solving problems of addition, subtraction, multiplication or
division by simply looking at the
problem and working out the answer using the
mind and nothing else (i.e., no
electronic calculator, no
pen and paper, etc.).