Writing 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 to write an expression for 'four times as many apples'?

Back

It means to multiply the number of apples (a) by 4, resulting in the expression 4a.

Front

How do you express 'ten times the minutes spent exercising'?

Back

You express it as 10m, where m represents the minutes.

Front

What does 'five dollars less than Tim's pay' translate to in an expression?

Back

It translates to p - 5, where p is Tim's pay.

Front

How would you write 'three more cookies than are in the jar'?

Back

You would write it as C + 3, where C is the number of cookies in the jar.

Front

What is the expression for '$5 less on dinner than James spent'?

Back

The expression is j - 5, where j is the amount James spent.

Front

What is a variable in an expression?

Back

A variable is a symbol (like x or y) that represents an unknown value.

Front

What does the term 'coefficient' mean in an expression?

Back

A coefficient is a number that multiplies a variable, such as 4 in the expression 4a.

Front

How do you express 'the sum of a number and 10'?

Back

You express it as n + 10, where n is the number.

Front

What does 'twice a number' mean in terms of an expression?

Back

It means to multiply the number by 2, resulting in the expression 2n.