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Competency 14 Number Concepts and Operations
TExES EC-6 Generalist Test
23
Education
Professional
10/28/2010

Term
 Grouping Property
Definition
 The associative property is also known as the...
Term
 Commutative Property
Definition
 The order does not change the results   ex. a+b = b+a OR a x b = b x a
Term
 Associative
Definition
 The order of operations performed in groups when adding or multiplying   Ex: 8+(2+10) =(8+2) +10 Ex: 6(3x4) = 3(4x6)
Term
 Order Property
Definition
 The commutative property is also known as the...
Term
 Composite Numbers
Definition
 Numbers with factors other than the number itself and 1 Ex: 4, 6, 9,27,33,49, 72
Term
 Prime Numbers
Definition
 Numbers having only 2 factors, the number itself and 1   Ex: 3, 5, 7, 11, 13, 17 NOTE: 1 is NOT included
Term
 Integers
Definition
 Whole numbers that are negative or positive, including zero
Term
 Prime Numbers
Definition
 these numbers can be odd or even the only factors are 1 and the number itself has an infinite number of multiples
Term
 Greatest Common Factor or Greatest Common Denominator
Definition
 The largest number that is a factor of 2 or more numbers is called...
Term
 Scientific Notation
Definition
 Writing a number as the product of a power of 10 Ex:240.2 = 2.402 x 102 Ex: 2,400,000 = 2.4 x 106
Term
 Multiple
Definition
 The time tables for a number.   Ex: 9:18, 27, 36, 45, 54... Ex: 5:10, 15, 20, 25, 30...
Term
 Least Common Multiple
Definition
 The smallest number that is a multiple of 2 or more numbers   EX: 15 is the smallest number that both 3 and 5 can go into (3:3, 6, 9, 12, 15, 18...) (5:5, 10, 15, 20, 25...)
Term
 Prime Factorization
Definition
 Writing the number as only the product of prime numbers   Using a factor tree to find the answer
Term
 Distributive Property
Definition
 Distributing numbers without changing the results Distributing numbers as they are taken apart   Ex: a(b+c) = (axb) + (axc) Ex: 3(4+8) = (3x4) +(3x8)
Term
 Percent as a Decimal
Definition
 Divide the value by 100, then move the decimal point 2 places to the left will result in writing a
Term
 One-to-One Correspondence
Definition
 Matching, like setting a table; Matching each number with one object is called...
Term
 Algorithm
Definition
 The procedure, method, or rule that breaks computation into small steps The step-by-step way of solving a problem
Term
 Writing a percent as a fraction
Definition
 Rewriting the precent using a denominator of 100 Ex: 25/100 = 25%
Term
 Positive numbers
Definition
 negative x negative positive x positive
Term
 Negative number
Definition
 positive x negative will equal?
Term
 Quotient
Definition
 In division, the answer is considered the...
Term
 Dividend
Definition
 In division, the number on the inside that is being divided is the...
Term
 Divisor
Definition
 In division, the number located on the outside, and the number which the dividend is divided...
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