Pre-Algebra Vocabulary Quiz

Study Notes

Inverse Operations: Operations that reverse each other, such as addition and subtraction.
Like Terms: These are expressions that share the same variables raised to the same powers, which can be combined during simplification.
Terms: Individual components of an expression that are added together, contributing to the overall value.
Coefficient: The numerical factor that multiplies a variable in a term, indicating how many units of the variable are present.
Constant: A term that holds a fixed value and does not incorporate any variables.

Simplifying Variable Expressions: The process of combining like terms and reducing expressions to their simplest form for clearer understanding.

Two-step Equations: These equations require two operations to solve, involving more than one mathematical operation.

Variables: Symbols, often letters, that represent numbers or values that are not specified, allowing for generalized mathematical expressions.

Commutative Properties: In addition and multiplication, the order of numbers does not affect the result (e.g., a + b = b + a).
Associative Properties: The grouping of numbers does not change the outcome in addition or multiplication (e.g., (a + b) + c = a + (b + c)).
Identity Property: The identity for addition is 0 (a + 0 = a) and for multiplication is 1 (N × 1 = N).
Multiplicative Identity: Multiplying any number by one returns the original number.
Additive Identity: Adding zero to any number retains the original number.

Area: The total number of square units required to completely cover a surface.
Perimeter: The total distance surrounding a geometric figure, calculated by adding the lengths of all sides.
Parallel Lines: Lines that run in the same direction and remain equidistant from each other.
Perpendicular Lines: Lines that intersect forming right angles (90 degrees).
Altitude: The height measured perpendicularly from the base of a geometric figure to its apex or opposite side.

Mean: The average value calculated by adding a set of numbers and then dividing by the quantity of those numbers.
Median: The middle value found in a sorted list of numbers, providing a measure of central tendency.
Mode: The value that appears most frequently within a data set, indicating the most common occurrence.
Range: The measure of variability calculated by subtracting the smallest number from the largest in a data set.