Understanding Numbers

Numbers are the foundation of all math! You'll work with whole numbers, decimals, fractions, and even negative numbers. It's important to know how to add, subtract, multiply, and divide these different kinds of numbers confidently.

Order of Operations

To solve expressions correctly, use the order of operations: Parentheses, Exponents, Multiplication & Division (left to right), Addition & Subtraction (left to right)—often remembered as PEMDAS.

Properties of Numbers

Numbers have special properties that can help you simplify problems. For example:

• Commutative Property: Changing the order doesn't change the answer (\( a + b = b + a \)).
• Associative Property: Grouping doesn't change the answer (\( (a + b) + c = a + (b + c) \)).
• Distributive Property: Multiply a number by a sum (\( a(b + c) = ab + ac \)).

Why It Matters

Mastering these basics helps you solve more complex problems and understand patterns in math and real-life situations!