absolute value a number’s distance from zero on a number line |-5| = 5 |4| = 4 - |3| = -3 -|-2| = -2

integers The set of real numbers consisting of the whole numbers and their opposites... -2, -1, 0, 1, 2,...

percent a ratio that calculates the parts per hundred (e.g; 20% is 20 parts of 100)

algebraic expression A group of numbers, symbols, and variables that express a single or series of mathematical operations 3a 4x + 1 2w – 3y + 5z

algorithm A set of step-by-step instructions for completing a task that can be generalized to other tasks, problems, or situations Order of Operations Making a peanut butter and jelly sandwich

quotient the answer to a division problem

product the result obtained when two or more quantities are multiplied

approximation A value or quantity that is close to, but not the same as, the desired value. 3.9 x 4 ≈ x 4.78 ≈ 20

proper fraction a fraction whose numerator is smaller than its denominator

rational number A number that can be expressed as a quotient of two integers ¾ = ¾.75 = ¾ 1 = 6/ = -100/1 55% = 55/100

Changing a fraction to a percent Convert the fraction to a decimal by division. Then, move the decimal point two times to the right

Changing a percent to a fraction Put the percent over 100, then reduce. 50% = 50/100 = ½ 35% = 35/100 = 7/20 75% = 75/100 = ¾

Greatest common factor The largest factor between two integers Factors of 32 = 1,2,4,8,16,32 Factors of 24 = 1,2,3,4,6,8,12, 24 GCF is 8

Least common multiple Smallest multiple between whole numbers Multiplies of 6: 6, 12, 18, 24, 30, 36, … Multiples of 8: 8, 16, 24, 32, 40, 48, … LCM is 24

Whole number 0, 1, 2, 3, ……

Order of operations P – Parentheses E – Exponents M/D – Multiplication or Division (which ever is first from left to right) A/S – Addition or Subtraction (which ever is first from left to right) “People Eat Many Doughnuts After School” (7)(3) + 32/4 – 5(2 2 ) = – 20 = 9

Prime number A number who has only 1 and itself as factors 2, 3, 5, 11, 29

Composite number A number that has 3 or more factors Factors of 4: 1, 2, 4 Factors of 8: 1, 2, 4, 8 Factors of 25: 1, 5, 25

Prime factorization

variable A letter or symbol used to represent a number. 3x + 1 = 60, x is the variable - 2 = is the variable

substitute

significant

function

Integer A positive or negative whole number 1, -5, 100, 35, -2

benefit

distribute

Process

available