Evaluating Expressions

Front

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

Back

22

Front

Evaluate 2a + 4b if a = 10 and b = 6

Back

44

Front

What is the value of x? 3x + 4 when x = -2

Back

-2

Front

If x = -7, what does -2⋅x equal?

Back

14

Front

Evaluate b² + 4 when b = 3

Back

13

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators (like +, -, ×, ÷) that represents a value.

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?

Back

A symbol (like x or a) that represents an unknown value in an expression or equation.

Front

What is the order of operations?

Back

The rules that dictate the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). (PEMDAS)

Front

What is the value of 5x when x = 3?

Back

15