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Year 8 Interactive Maths - Second Edition


Pronumerals

A pronumeral is a letter that is used to represent a number (or numeral) in a problem.

For example, the formula for the area of a rectangle is:

Area of a rectangle = length width

If A represents the area of the rectangle, l represents the length of the rectangle and w represents the width of the rectangle, then we can write the formula for the area of the rectangle as follows:

A = l w

In this formula, the letters A, l and w are called pronumerals.


Note:

A pronumeral is a letter used in a problem to represent the measurement of a quantity.  We often choose the first letter of the name of a quantity.

For example, the measurement of the base of a triangle will be represented by b.


Key Terms

pronumeral


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