The set of integers.
An expression
A mathematical phrase containing numbers and operations is called an expression. Expressions can be joined together with an equals sign to form an equation.
Algebraic expressions is a mathematical phrase that contains operations numbers or variables.
"arithmetical expressions" may be what you are seeking.
It is an expression when it does not contain an equality (or inequality) sign
surds:- if this is for the Mail on Sunday GK crossword YES IT IS
A formula is defined as a mathematical expression of a natural law. A formula is a combination of numbers and symbols used to describe how something works.
The natural symbol in mathematical equations represents the relationship between numbers and quantities in a concise and standardized way. It helps to simplify complex calculations and communicate ideas effectively.
WikiAnswers isn't the best at displaying some math, so I've included a link to an image of the proper formatting in the "related links" section, below.
Numbers are mathematical symbols used to represent quantities and perform calculations. They can be classified into various types including whole numbers, natural numbers, rational numbers, irrational numbers, and complex numbers. Numbers can be positive, negative, or zero, and they can be used in various mathematical operations such as addition, subtraction, multiplication, and division.
Expression is the mathematical phrase made up of numbers and operations
Rational numbers are mathematical concepts. They do not do anything.