Evaluating Algebraic Expressions

Front

Evaluate 2r + 1 if r = -3

Back

-5

Front

Evaluate x - 20 when x = 3

Back

-17

Front

Evaluate 3x + 5 when x = 5

Back

20

Front

Evaluate b² + 4 when b = 3

Back

13

Front

Evaluate 5x + 2 for x = 1

Back

7

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

Evaluate 4x - 3 when x = 2

Back

5