TSI Math test Comprehensive
Questions with Verified
Answers Graded A+
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
Collinear Points - Answer: Points that are on the same line
Plane - Answer: -A plane has two dimensions
-It is represented by a shape that looks like a floor or a wall, but it extends w/o an end
-Through any three points not on the same line there is exactly one plane
-A plane is written using 3 non-collinear points or with upper-case cursive letter
Questions with Verified
Answers Graded A+
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
Collinear Points - Answer: Points that are on the same line
Plane - Answer: -A plane has two dimensions
-It is represented by a shape that looks like a floor or a wall, but it extends w/o an end
-Through any three points not on the same line there is exactly one plane
-A plane is written using 3 non-collinear points or with upper-case cursive letter
