Writing Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

What does 'more than' indicate in algebraic expressions?

Back

'More than' indicates addition. For example, '80 more than B' is written as B + 80.

Front

What does 'fewer than' indicate in algebraic expressions?

Back

'Fewer than' indicates subtraction. For example, '6 fewer than twice t' is written as 2t - 6.

Front

How do you express 'half of a variable'?

Back

'Half of a variable F' is expressed as 1/2F or ½F.

Front

What is the algebraic expression for 'Maria has $100 and deposits d dollars'?

Back

The expression is 100 + d.

Front

How do you express 'saves $50 per month' in algebraic terms?

Back

If m represents months, the expression is 50m.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Front

What does it mean to evaluate an algebraic expression?

Back

To evaluate an algebraic expression means to substitute the values of the variables and perform the operations.

Front

What is the algebraic expression for 'twice a number t'?

Back

'Twice a number t' is expressed as 2t.

Front

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

Back

'The sum of a number x and 10' is expressed as x + 10.