ATI TEAS Math Study Questions and Answers

Decimal Placement/Converting - Ans - Value greater than 1, Move decimal to right till you get whole number. - Number becomes numerator and 1 becomes denominator with the number of 0's that matches number of moves for decimal. = *Fraction* - Value less than 1. Use whole number as numerator and the *Place value* of *last decimal Digit* as denominator. =*Fraction* Percentage Convert to/from Decimal - Ans *TO* - Divide % by 100 then remove % symbol *FROM* - Multiply by 100 then add % symbol Divide % by 100 - Ans How do you convert a percent into a decimal? Percentage Convert to/from Fraction - Ans *TO* - Convert to decimal first (divide by 100) then put into simplest form *FROM* - Convert to decimal (multiply to get 100 in denominator then divide by denominator) then put decimal into % Fraction Convert to Decimal - Ans Divide numerator by denominator Order of Operations - Ans -PEMDAS (No exponent for TEAS 6) -Parentheses *FIRST* -Multiplication and Division *SECOND* (Left to Right) -Addition and Subtraction *THIRD* (Left to Right) Compare and Order Rational Numbers - Ans -*Rational Numbers*: -6 (-6/1), 5 (5/1), 100 (100/1) -*Irrational Numbers*: Square root (any prime number), pi -*Numeric Order*: Least to Greatest, Greatest to Least. Best in decimal form. Line them up vertically. -*Fraction/Fraction Form*: 5 2/7 (put into decimal) Divide 2 by 7 to get .2857 which will equal 5.2857 <, _<_ - Ans Less than, IS fewer than Less than or equal to, is at most, is no more than >, _>_ - Ans Greater than, IS more than Greater than or equal to, is at least, is no less than = - Ans Equal, equal to, is, was, were, will be, yields, becomes Common Denominator - Ans 1. Find least on on multiple of denominator 2. Change each fraction to make their denominator the same as least common denominator ~List multiples of each denominator and find SMALLEST number ~Multiply numerator by multiple of LCD, Use LCD as denominator