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

What does it mean when we say 'Jenny's mom is 28 years older than Jenny'?

Back

It means if Jenny's age is represented as J, then Jenny's mom's age can be expressed as J + 28.

Front

If Harry has P pencils and John has 4 less, how can we express John's pencils?

Back

John's pencils can be expressed as P - 4.

Front

What is the expression for Emily having two more dogs than Sarah if Sarah has D dogs?

Back

Emily's dogs can be expressed as D + 2.

Front

How do we express Jamie's age if Tyler is S years old and Jamie is 7 years older?

Back

Jamie’s age can be expressed as S + 7.

Front

What is the expression for a number N decreased by 6?

Back

The expression is N - 6.

Front

If a number N is increased by 6, what is the expression?

Back

The expression is N + 6.

Front

What does it mean to write an expression?

Back

Writing an expression means creating a mathematical statement that represents a situation or relationship.

Front

How do we represent a situation where one quantity is less than another?

Back

We subtract the smaller quantity from the larger one in the expression.

Front

What is the difference between an equation and an expression?

Back

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