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

Define a variable in algebra.

Back

A variable is a symbol, often a letter, that represents one or more numbers.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an algebraic expression.

Front

What is a constant in algebra?

Back

A constant is a fixed value that does not change.

Front

How do you write an expression for '5 more than a number x'?

Back

x + 5

Front

How do you write an expression for 'twice a number y'?

Back

2y

Front

What does 'the sum of a number x and 10' mean in algebraic terms?

Back

x + 10

Front

How do you express 'the difference of a number z and 4'?

Back

z - 4

Front

What is the algebraic expression for '3 times the sum of a and b'?

Back

3(a + b)