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 an unknown value in an algebraic expression or equation.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the difference between a term and a coefficient?

Back

A term is a single mathematical expression, which can be a number, variable, or the product of numbers and variables. A coefficient is a numerical factor in a term.

Front

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

Back

n + 10

Front

What is the expression for 'twice a number x'?

Back

2x

Front

How do you express 'the product of 4 and a number y'?

Back

4y

Front

What is the expression for 'the difference of a number z and 3'?

Back

z - 3

Front

How do you write 'the quotient of 15 and a number k'?

Back

15/k

Front

What does 'increased by' indicate in an expression?

Back

'Increased by' indicates addition. For example, '5 increased by a number x' is written as x + 5.