Writing 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

How do you translate the phrase 'four more than three times a number c' into an algebraic expression?

Back

3c + 4

Front

What does the phrase 'six times a number' represent in algebraic terms?

Back

6x, where x is the number.

Front

How can you express 'a number less than eleven' using a variable?

Back

11 - x, where x is the number.

Front

What is the value of the expression 2n + 7 when n = 7?

Back

21.

Front

How many terms are in the expression 7y + 3 + 6k - 9?

Back

4 terms.

Front

What is a term in an algebraic expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, multiplied together.

Front

What is the difference between a variable and a constant in algebra?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their given values.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.