TSI MATH TEST QUESTIONS AND CORRECT ANSWERS

HOSMERIT



TSI MATH TEST QUESTIONS AND CORRECT
ANSWERS


PEMDAS

Answer: (parenthesis, exponents, multiplication, division, addition, subtraction) work left to

right




Exponential Notation

Answer: Ex: 6^4, 2^3, 9^10, etc.




Expanded Form

Answer: Ex: 7x7x7, 6x6, 2x2x2x2x2, etc.




Standard Notation

Answer: Ex: 5^2= 25; 25 is the standard notation (the answer or solution)



+x+

Answer: =+

,+x-

Answer: =-




-x-

Answer: =+




Adding or Subtracting fractions

Answer: You need a common denominator




Multiplying fractions

Answer: no special rule, just multiply Ex: 2/5 x 3/9= 6/45




Dividing fractions
Answer: flip 2nd fraction and multiply Ex: 2/5 divided by 3/9= 2/5 x 9/3




Solving Equations w/ fractions

Answer: 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

Answer: 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

Answer: Formula: interest= principal x rate x time (I= PxRxT)




Point

Answer: -A point has no dimension

-It is represented by a dot

-A point is written using an upper-case letter




Line

Answer: -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 letter