Definitions

1. noun

The branch of mathematics dealing with numbers and their operations, including addition, subtraction, multiplication, and division.

“The teacher explained the concepts of arithmetic to her students.”

2. adjective

Relating to the branch of mathematics dealing with numbers and their operations.

“Arithmetic operations can be performed using a calculator.”

3. verb

To calculate or perform mathematical operations, especially simple ones.

“She had to arithmetic the figures to get the correct answer.”