# Variable Expressions

A **variable** is a letter that represents an unknown number.

An **expression** is a group of numbers, symbols, and variables that represents another number.

We can translate a given word problem to a mathemeatical expression. Following are some words indicating mathematical operations in a word problem.

Sum, more than, increased by, plus, and together all mean addition (+)

Difference, less than, decreased by, and minus all mean subtraction (-)

Product, times, and of mean multiplication (×)

Quotient and divided by mean division (÷)

For example: Suppose Thomas has *p* cookies and Landon has 58 fewer cookies than Thomas.

Let's find an expression representing the number of cookies with Landon.

Landon has 58 fewer cookies than *p*.

We have to find the expression for '58 fewer than *p*.'

“Fewer than” means subtraction.

So, 58 fewer than *p* is *p* – 58.

Number of cookies with Landon = *p* – 58

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### Help

The correct answer is

##### Remember :

The smallest number is the one that comes first while counting.

##### Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.