Evaluate Expressions

Front

Evaluate the expression for n = 2 and p = 7. np =

Back

14

Front

Evaluate 3x + 8 if x = 2

Back

14

Front

Evaluate n + 5² for n=3

Back

28

Front

Evaluate x³ for x=4

Back

64

Front

Evaluate x ÷ 4 for x=48

Back

12

Front

What is an expression in mathematics?

Back

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

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 the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What is the value of 5²?

Back

25