TSI Math test questions and answers 2025\2026
A+ Grade
PEMDAS
- correct answer (parenthesis, exponents, multiplication, division, addition, subtraction) work left to
right
Exponential Notation
- correct answer Ex: 6^4, 2^3, 9^10, etc.
Expanded Form
- correct answer Ex: 7x7x7, 6x6, 2x2x2x2x2, etc.
Standard Notation
- correct answer Ex: 5^2= 25; 25 is the standard notation (the answer or solution)
+x+
- correct answer =+
+x-
- correct answer =-
-x-
- correct answer =+
Adding or Subtracting fractions
- correct answer You need a common denominator
,Multiplying fractions
- correct answer no special rule, just multiply Ex: 2/5 x 3/9= 6/45
Dividing fractions
- correct answer flip 2nd fraction and multiply Ex: 2/5 divided by 3/9= 2/5 x 9/3
Solving Equations w/ fractions
- correct 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
- correct 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
- correct answer Formula: interest= principal x rate x time (I= PxRxT)
Point
- correct answer -A point has no dimension
-It is represented by a dot
-A point is written using an upper-case letter
Line
- correct 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
- correct answer Points that are on the same line
Plane
- correct 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
Coplanar points
- correct answer Points that lie in the same plane
Line Segment
- correct answer A line segment is named using both end points with a line above them
Ray
- correct answer A ray is named using its endpoint first and then any other point on the ray pointing to
the right above them
Intersecting lines
- correct answer 2 lines that share exactly one point
Parallel lines
- correct answer 2 lines that are always the same distance apart and never touch
Perpendicular lines
- correct answer The relationship between 2 lines which meet at a right angle (90degrees).
Perpendicular lines= 2 lines intersect at a right angle
Right angle
- correct answer 90 degrees
Straight angle
- correct answer 180 degrees
Acute angle
- correct answer between 0 degrees and 90 degrees
A+ Grade
PEMDAS
- correct answer (parenthesis, exponents, multiplication, division, addition, subtraction) work left to
right
Exponential Notation
- correct answer Ex: 6^4, 2^3, 9^10, etc.
Expanded Form
- correct answer Ex: 7x7x7, 6x6, 2x2x2x2x2, etc.
Standard Notation
- correct answer Ex: 5^2= 25; 25 is the standard notation (the answer or solution)
+x+
- correct answer =+
+x-
- correct answer =-
-x-
- correct answer =+
Adding or Subtracting fractions
- correct answer You need a common denominator
,Multiplying fractions
- correct answer no special rule, just multiply Ex: 2/5 x 3/9= 6/45
Dividing fractions
- correct answer flip 2nd fraction and multiply Ex: 2/5 divided by 3/9= 2/5 x 9/3
Solving Equations w/ fractions
- correct 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
- correct 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
- correct answer Formula: interest= principal x rate x time (I= PxRxT)
Point
- correct answer -A point has no dimension
-It is represented by a dot
-A point is written using an upper-case letter
Line
- correct 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
- correct answer Points that are on the same line
Plane
- correct 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
Coplanar points
- correct answer Points that lie in the same plane
Line Segment
- correct answer A line segment is named using both end points with a line above them
Ray
- correct answer A ray is named using its endpoint first and then any other point on the ray pointing to
the right above them
Intersecting lines
- correct answer 2 lines that share exactly one point
Parallel lines
- correct answer 2 lines that are always the same distance apart and never touch
Perpendicular lines
- correct answer The relationship between 2 lines which meet at a right angle (90degrees).
Perpendicular lines= 2 lines intersect at a right angle
Right angle
- correct answer 90 degrees
Straight angle
- correct answer 180 degrees
Acute angle
- correct answer between 0 degrees and 90 degrees
