SSAT Upper Level: Quantitative
SSAT Upper Level
Basic Concepts
Algebraic Expressions and Equations
Introduction to Algebra
Algebra helps us find unknown values, like figuring out how many candies are in a jar if you know the total weight.
Expressions vs. Equations
- Expression: A combination of numbers, variables, and operations (like \( 3x + 2 \))
- Equation: Two expressions set equal to each other (like \( 3x + 2 = 8 \))
Simplifying Expressions
Combine like terms and use the order of operations (PEMDAS: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction) to simplify.
Solving Equations
The goal is to find the value of the variable that makes the equation true.
Real-World Applications
Algebra is useful for budgeting, planning trips, and even coding video games!
Examples
If \( x + 5 = 12 \), then \( x = 7 \).
Simplifying \( 2x + 3x \) to \( 5x \).
In a Nutshell
Algebra lets you use symbols to solve puzzles and find unknowns in everyday situations.