Evaluating Expressions

Front

Evaluate 3r + 2e when r = 3 and e = 2

Back

13

Front

Let g = 3 and h = 9 and evaluate 4h + 2g + 4

Back

46

Front

Evaluate b² + 4 when b = 3

Back

13

Front

Evaluate (20ab) ÷ (a-b)² if a = 4 and b = -2

Back

-40/9

Front

Evaluate 6 + 7b - 3a if a = 2 and b = 8

Back

56

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 the order of operations in mathematics?

Back

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

Front

What is a variable in mathematics?

Back

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

Front

What is a constant in mathematics?

Back

A fixed value that does not change.