Writing Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations (like addition, subtraction, multiplication, and division) that represents a value.

Front

What does it mean to write an expression for 'seven times m'?

Back

It means to represent the phrase mathematically as 7m.

Front

What is the equation represented by 'seven times m is 14'?

Back

7m = 14.

Front

What are some words that indicate addition in expressions?

Back

More than, sum, greater than, combined.

Front

In the expression 4d - 9, what is the '9' called?

Back

It is called a constant.

Front

What does the '-' symbol represent in the expression 4d - 9?

Back

It represents the operation of subtraction.

Front

How would you represent 'four times x minus three' mathematically?

Back

4x - 3.

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value.

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 'more than' indicate in writing expressions?

Back

It indicates addition.