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 'increased by' mean in an expression?

Back

'Increased by' means to add a number to another number. For example, '16 increased by x' is written as '16 + x'.

Front

How do you write 'the sum of a number and 5' as an expression?

Back

It is written as 'x + 5'.

Front

What does 'the sum of 8 times a number and three' mean?

Back

It means to multiply a number by 8 and then add 3, written as '8x + 3'.

Front

How do you express 'the difference between 12 times a number and 6'?

Back

It is expressed as '12x - 6'.

Front

What does 'subtracted from' indicate in an expression?

Back

'Subtracted from' indicates that a number is being taken away from another number. For example, '10 subtracted from x' is written as 'x - 10'.

Front

What is the expression for '16 increased by a number x'?

Back

The expression is '16 + x'.

Front

How would you express 'the sum of a number and 5' using a variable?

Back

It is expressed as 'x + 5'.

Front

What is the expression for 'the sum of 8 times a number and three'?

Back

The expression is '8x + 3'.

Front

How do you write 'the difference between 12 times a number and 6'?

Back

It is written as '12x - 6'.