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Math Chapter 2

Words for Math Class

WordDefinition
absolute value The absolute value of a number is its distance from 0 on the number line, and is indicated by drawing a bar on each side of the number. For example, l-20l means “the absolute value of -20”. Since -20 and 20 are each 20 units from 0 on the number line, l
composite number A whole number greater than 1 with more than two factors. For example, 12 is a composite number since it is greater than 1 and has more than two factors, In fact, it has six factors: 1, 2, 3, 4, 6, and 12.
equivalent fractions Fractions that describe the same portion of a whole, or name the same number. For example, , , and are equivalent fractions.
exponent A small, raised number that tells how many times a factor is multiplied
factor another whole number that divides into it without a remainder
factor pair two factors whose product equals that number
. greatest common factor, GCF The greatest common factor (often abbreviated GCF) of two or more numbers is the greatest of their common factors.
least common multiple, LCM The least common multiple (often abbreviated LCM) of two or more numbers is the smallest of their common multiples.
mixed number A whole number and a fraction.
multiple the product of that number and another number whole number
opposites Two numbers that are the same distance from 0 on the number line, but on different sides of 0
prime factorization that number written as a product of prime numbers
prime number A whole number greater than 1 with only two factors: itself and 1
relatively prime Two or more numbers are relatively prime if their only common factor is 1. For example, 7 and 9 are relatively prime.
repeating decimal A decimal with a pattern of digits that repeat without stopping
fraction A fraction can be used to describe part of a whole or to name a number between two whole numbers
numerator The numerator is the top number in a fraction. It describes the number of equal-sized parts out of the whole that are being discussed.
denominator The denominator is the bottom number in a fraction. It describes how many equal-sized parts form a whole
lowest terms A fraction is in its lowest terms if its numerator and denominator are relatively prime
negative number number that is less than 0
positive number A number that is greater than 0
Created by: team64
 

 



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