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GRE Math Strategies

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. xw> yz
a set
±vx
b is the y-intercept
x>y>0 and w>z>0

2. x more than y
distributive axiom
slope of a line joining two points
x + y
circle

3. 1/an
a?n
commutative axiom of addition and multiplication
right triangle
no solutions

4. M= y2-y1/x2-x1
x<0 and z=x+y
properties of a rectangle
slope of a line joining two points
altitude of a triangle

5. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
approx square roots
right triangle
average
equal

6. Two tangents to a circle from the same point outside of the circle are always
equal
right triangle
trapezoid
it is also divisible by 2 and 3

7. ?if y angle< x angle - then
y-x
a side< b side
simultaneous equations in 2 unknowns
22/7 or 3.14

8. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
x>y
right triangle
when finding a solution set
±vx

9. Angles that equal 180 degrees
consistent lines
implies
supplementary angles
right triangle

10. x/100
supplementary angles
y-x
x percent
y-x

11. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
set
perpendicular
slope of a line joining two points
approx sums

12. Area= l x w perimeter = (2l)(2w)
radius of a circle
regular polygon properties
always positive or zero
rectangle

13. x + y
slope of a line joining two points
properties of a rectangle
x and y
regular polygon properties

14. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
1
x - y
the last digit is 0
midpoint of a line segment joining 2 parts

15. The decrease from x to y
x>y and w>z
x-y
x percent
isosceles

16. Any line that connects two points on a circle.
1
chord
cube
acute angle

17. 1/x + 1/y x -y ? 0
x+y/xy
xy< 0
equals
closed set

18. x +z > y+z
medians of a triangle
inconsistent lines
range of a relation
x>y

19. 1-1-v2 (90-45-45)
right triangle
central angle
never divide by zero
chord

20. (amount of increase/original amount) x 100
the percent of increase
odd
rectangle
1.7

21. 7-24-25
associative axiom of addition and multiplication
x>y>0 and w>z>0
right triangle
x is less than y

22. If two lines are parallel - the slope of one is
expression of an even number
n= mx/100
equal to the slope of the other
standard deviation

23. 2k
approx sums
regular polygon properties
right triangle
expression of an even number

24. Wx<wy
similar triangles
w<0 and x>y
22/7 or 3.14
inscribed angle

25. y years ago
-y
a<x<b
times
the percent of increase

26. | |
find the intersection of two sets
parallel
x - y
combinations

27. x < y or y> x
chord
x intercept
x is less than y
odd

28. A subset of a set is
xy>0
opposite the greatest side
a set
right triangle

29. Area = ?r² circumference(perimeter)= 2?r
diameter of circle
times
circle
vertical angles

30. If b²-4ac < 0 - there are
all acute angles are equal and all obtuse angles are equal
no solutions
the last two digits of the number make a number that is divisible by 4
vertical angles

31. 180°
1 - 3 - 5 - 7 - 9
angle a and angle b = angle d
properties of a square
triangle or straight line

32. The point where the line crosses the y-axis - x will always = 0 in this case
y intercept
1 - 3 - 5 - 7 - 9
x + y
3.16

33. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
standard deviation
equal to the sum of the measures of the remote exterior angles
n percent greater than x
equal angles

34. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
pythagorean theorem
v3/2 or .87
isosceles triangle
quadratic equations

35. Integer is divisible by 2
equal to the sum of the measures of the remote exterior angles
360 degrees
if the last digit of the number is 0 -2 -4 -6 -8
±vx

36. Is the relation with ALL ordered pairs REVERSED.
x<0
is a subset of
vertical angles
inverse of a relation

37. 1-v3- 2 (90-30-60)
right triangle
coinciding lines
radius
properties of parallelograms

38. If the each element of the domain occurs only once as a FIRST component
a relation is a function
if the last digit of the number is 0 -2 -4 -6 -8
equals
22/7 or 3.14

39. A<x and x<b
is a subset of
approx square roots
permutations
a<x<b

40. ?
+y
a relation is a function
belongs to
perpendicular bisectors

41. N is what % of m
vertical angles
n= mx/100
greater than c
range of a relation

42. ?
0 - 2 - 4 - 6 - 8
properties of a rectangle
equilateral triangle
perpendicular

43. x - (n/100)x
acute angle
n percent less than x
percent
right triangle

44. C²= a²+b² and angle x and y are equal to 90°
right triangle
set
even
the last two digits of the number make a number that is divisible by 4

45. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
right triangle
percent
right triangle
simultaneous equations

46. Is the set of the second components of the ordered pairs
360 degrees
altitude of a triangle
range of a relation
properties of a square

47. y years from now
equal angles
+y
b+d>c+e
x>y and y>z

48. Angles directly across each other are equal
x + y
vertical angles
commutative axiom of addition and multiplication
0 - 2 - 4 - 6 - 8

49. Any integer is divisible by 10 - if
right triangle
the last digit is 0
x²-2xy+y²
area of a triangle

50. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
diameter of circle
Axioms
equal angles