TSI Math test Questions And Answers

TSI Math test Questions And Answers PEMDAS - ANS (parenthesis, exponents, multiplication, division, addition, subtraction) work left to right Exponential Notation - ANS Ex: 6^4, 2^3, 9^10, etc. Expanded Form - ANS Ex: 7x7x7, 6x6, 2x2x2x2x2, etc. Standard Notation - ANS Ex: 5^2= 25; 25 is the standard notation (the answer or solution) +x+ - ANS =+ +x- - ANS =- -x- - ANS =+ Adding or Subtracting fractions - ANS You need a common denominator Multiplying fractions - ANS no special rule, just multiply Ex: 2/5 x 3/9= 6/45 Dividing fractions - ANS flip 2nd fraction and multiply Ex: 2/5 divided by 3/9= 2/5 x 9/3 Solving Equations w/ fractions - ANS either multiply both sides of the equation by the reciprocal of the fraction, or multiply both sides of the equation by the denominator of the fraction Percent Increase or Decrease problems - ANS Formula: amount of change/ original number. Ex: Find the percent decrease if the price changes from $60 to $39. 60-39= 21. amount of change= $21 original number= $60. $21/$60= 0.35. Convert to percents. 0.35= 35% Interest - ANS Formula: interest= principal x rate x time (I= PxRxT) Point - ANS -A point has no dimension -It is represented by a dot -A point is written using an upper-case letter Line - ANS -A line has one dimension -Named using any two point on a line w a two sided arrow above them -It can also be named using a lower-case cursive let