Evaluating Expressions

Front

Evaluate m² if m = 7

Back

49

Front

Evaluate 5m + 9n if m = -7 and n = 4

Back

1

Front

Simplify the following: -8 + (15 - 3) ÷ 4

Back

-5

Front

Evaluate x ÷ 4 if x = 80

Back

20

Front

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

Back

-2

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

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often abbreviated as PEMDAS.

Front

What is a variable in mathematics?

Back

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

Front

What is the value of 2x + 3 when x = 5?

Back

13