8th Grade Math Vocab Flashcards
Review all of the key concepts and terms from this year (thus far).
Base
The number that is being multiplied repeatedly in an exponent expression (e.g., in 2^3, the base is 2).
Evaluate
To calculate the value of an expression.
Exponent
The number that indicates how many times the base is multiplied by itself (e.g., in 2^3, the exponent is 3).
Monomial
A single term algebraic expression (i.e. 3x)
Negative Exponent
An exponent with a negative sign; it means the reciprocal of the base is taken (e.g., 2^-2 = 1/(2^2)).
Order of Operations
The rules for evaluating an expression, typically remembered as PEMDAS (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction)
Power
The entire expression that includes the base and exponent (e.g., 2^3 is a power)
Power of Property
To raise a power to another power, multiply the exponents (e.g., (x^2)^3 = x^(2*3) = x^6)
Power of a Product Property
When raising a product to a power, distribute the exponent to each factor (e.g., (2x)^3 = 2^3 * x^3)
Product of Powers Property
When multiplying two powers with the same base, keep the base and add the exponents (e.g., x^2 * x^3 = x^(2+3) = x^5)
Quotient of Powers Property
When dividing two powers with the same base, keep the base and subtract the exponents (e.g., x^5 / x^2 = x^(5-2) = x^3)
Scientific Notation.
A way to write very large or very small numbers using an equation with a number between 1 and 10 being multiplied to a power of 10.
Standard Form
A number written without exponents. Or, the number you start with when converting to Scientific Notation.
Term
Either a single number or variable, or the product of several numbers or variables. Terms are separated by a + or - sign in an overall expression.
Zero Exponent Rule
Any number raised to the power of zero is equal to 1 (e.g., 5^0 = 1).
