Writing Expressions

Front

10 decreased by n

Back

10 - n

Front

It costs $5 to get into the county fair. It costs $2 for one ride ticket. How much will you spend to go to the fair and purchase t tickets?

Back

5 + 2t

Front

50 increased by x

Back

50 + x

Front

x plus 25

Back

x + 25

Front

Twice a number, decreased by four (USE x AS YOUR VARIABLE)

Back

2x - 4

Front

What is an expression?

Back

A mathematical phrase that can contain numbers, variables, and operators.

Front

What does 'decreased by' mean in an expression?

Back

It means to subtract a value from another.

Front

What does 'increased by' mean in an expression?

Back

It means to add a value to another.

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters like x or y.

Front

How do you write an expression for 'the sum of a number and 10'?

Back

x + 10