Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, ×, ÷) that represents a value.

Front

How do you write an expression for dividing a total area A into equal sections?

Back

You write the expression as A / number of sections.

Front

If Sarah has D dogs, how do you express the number of dogs Emily has if she has two more than Sarah?

Back

The expression is D + 2.

Front

What does the expression N - 6 represent?

Back

It represents a quantity that is 6 less than N.

Front

If Harry has P pencils and John has 4 less, how do you express John's pencils?

Back

The expression is P - 4.

Front

What is the expression for Jenny's age if her mom is N years old and 28 years older than her?

Back

The expression is N - 28.

Front

How do you express the area of one section if a garden has an area of A square feet and is divided into 8 sections?

Back

The expression is A / 8.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown value.

Front

How can you express a total amount decreased by a certain number?

Back

You can express it as total amount - number.