Writing Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does 'the sum of' indicate in an expression?

Back

It indicates addition. For example, 'the sum of 3 and 4' translates to 3 + 4.

Front

How do you express 'doubled' in mathematical terms?

Back

To double a number, you multiply it by 2. For example, 'double x' is expressed as 2 * x.

Front

What does 'less than' mean in an expression?

Back

'Less than' indicates subtraction. For example, '5 less than v' is expressed as v - 5.

Front

What is the mathematical operation for 'product of'?

Back

'Product of' indicates multiplication. For example, 'the product of 3 and 4' is expressed as 3 * 4.

Front

How do you write 'the sum of a number and five' as an expression?

Back

It is written as x + 5.

Front

What does 'fewer than' indicate in an expression?

Back

'Fewer than' indicates subtraction. For example, '9 fewer than t' is expressed as t - 9.

Front

What is the expression for 'the total number of people minus 9'?

Back

It is expressed as t - 9.

Front

How do you express 'the difference of a number and 3'?

Back

It is expressed as x - 3.

Front

What does 'multiplied by' mean in an expression?

Back

'Multiplied by' indicates multiplication. For example, '5 multiplied by x' is expressed as 5 * x.