Final answer:
An exact number is a number or text value that is entered directly into a formula in Mathematics.
Step-by-step explanation:
In Mathematics, an exact number is a number or text value that is entered directly into a formula. It is a precise value that is known or given, without any uncertainty or approximation. Exact numbers can be used in various mathematical operations and calculations.
For example, if you have a formula to calculate the area of a square, and one of the side lengths is given as 5 units, then 5 is an exact number that can be directly entered into the formula.
In mathematical equations, exact numbers are often represented using digits or symbols, depending on the context and conventions of the particular mathematical field.