arithmetic
/əˈrɪθməˌtɪk/
noun
- The branch of mathematics that deals with the basic operations of addition, subtraction, multiplication, and division, and with counting and calculating numbers.
- The teacher reviewed basic arithmetic before introducing algebra to the class.
- Learning arithmetic is essential for everyday tasks like budgeting and shopping.
- She struggled with arithmetic as a child but later became a skilled accountant.
adjective
- Relating to or involving the basic operations of arithmetic.
- He made an arithmetic error when adding up the total cost.
- The students solved a series of arithmetic problems on the worksheet.
- The arithmetic mean of the test scores was calculated by the teacher.