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Blaine Math Chpt 1

Math Vocabulary

TermDefinition
Conjecture A statement believed to be true (2-4-6-_-_-_)
Power A number produced by raising a base to an exponent (2x2x2x2=16)
Exponent The number that indicates how many times the base is used (2x2x2x2=2*=16)
Base When a number is raised to a power, the number that is used as a factor (2*, it is the 2)
Scientific notation A method of writing very large or very small numbers (17,900,000=1.79 x 10* {*=7})
Numerical expression An expression that contains only numbers and operations
Order of operations A rule for evaluating expressions: first perform the operations in parentheses, then compute powers and roots, then pform all multiplication and division from left to right, then perform all addition and subtraction from left to right
Commutative property You can add numbers in any order and multiply numbers in any order
Associative property When you add or multiply, you can group the numbers together in any combination
Identity property The sum of zero and any number is the number; the product of 1 and any number is the number
Distributive property For all real numbers, you can multiply numbers mentally by breaking apart one of the Numbers and writing it as a sum or difference.
Variable A symbol used to represent a quantity that can change
Constant A quantity that cannot change
Algebraic expression Consists of at least one variable
Evaluate Substitute a number for the variable
Term Can be a number, a variable, or a product of numbers and variables
Coefficient Number that is multiplied by a variable
Equation Mathematical statement that two expressions are equal in value
Solutiion Value or values that make it true
Addition property of equality You can add the same amount to both sides of an equation and the statement will still be true
Inverse operations Operations that undo each other
Subtraction property of equality You can subtract the same amount from both sides of an equation and the statement will still be true
Mutiplication property of equality You can multiply both sides of an equation by the same number and the statement will still be true
Division property of equality You can divide both sides of an equation by the same nonzero number and the statement will still be true
Created by: beth2244