Evaluating Algebraic Expressions

Front

Translate: 42 less than a number x

Back

x - 42

Front

Evaluate when a = 15: 2(a - 5) + 2

Back

22

Front

Evaluate 3(2x + z) when x=8 and z=2

Back

54

Front

Evaluate bc + 5a when a = 3, b = 4, and c = 6

Back

39

Front

Evaluate 2n + 7 if n = 7

Back

21

Front

What is an algebraic expression?

Back

An expression that contains numbers, variables, and operations.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting variables with numbers.

Front

What is a variable in algebra?

Back

A symbol (usually a letter) that represents an unknown value.

Front

What is the order of operations?

Back

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Translate: The sum of a number x and 10

Back

x + 10