IPA: /əˈrɪθmətɪkli/
KK: /əˈrɪθmətɪkli/
In a way that relates to arithmetic, which is the branch of mathematics dealing with numbers and basic operations like addition, subtraction, multiplication, and division.
The students solved the problems arithmetically to ensure accuracy in their calculations.
Arithmetically → It is formed from "arithmetica" (from Greek "arithmetikos", meaning numerical or relating to numbers) and the suffix "-ally" (meaning in a manner of). The word "arithmetically" means in a manner relating to numbers or arithmetic.
Think of the Greek word for numbers ('arithmetikos') to remember that 'arithmetically' means doing something in a numerical way.