At this point in history (April of 1945) the word that denotes a person who sits and performs arithmetical calculations is "computer."

Algebra allowed arithmetical calculations to become as sophisticated as geometric ones.

As well as arithmetical calculations, Babylonian mathematicians also developed algebraic methods of solving equations.

Sergeant Witchem, shorter and thicker-set, and marked with the small-pox, has something of a reserved and thoughtful air, as if he were engaged in deep arithmetical calculations.

Mental calculation comprises arithmetical calculations using only the human brain, with no help from calculators, computers, or pen and paper.

The postulated number of melakarta derives from arithmetical calculation and not from Carnatic practice, which employs far fewer scale forms.

(iii) Each step in computing the monthly payment, including the arithmetical calculations involved in each step, shall be set out in detail in the Monthly Statement.

I fondly remember arithmetical calculations and contests from elementary school, and I have found that this is the case with many of my colleagues.

The tables were at one time used for arithmetical calculations modulo prime powers, though like many mathematical tables they have now been replaced by digital computers.

The costs and benefits of belonging to the European Union cannot be reduced to a simple arithmetical calculation.