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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. Between 180° and 360°
reflex angle
x - y
isosceles triangle
expression of an even number

2. Volume= e(edge)³ surface area= 6e²
slope of a line joining two points
find the intersection of two sets
cube
diameter

3. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
determining if a number is prime
angle inscribed in semicircle
equilateral triangle
x+y/xy

4. A°
trapezoid
x + y
tangent
1

5. 3-4-5
the last two digits of the number make a number that is divisible by 4
Axioms
the sum of parts
right triangle

6. The angles opposite to sides that are equal in length have
x%
equal angles
equal to the slope of the other
vertical angles

7. A<x and x<b
x is greater than y
a<x<b
standard deviation
finding the union of sets

8. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
then side b > side a
x<0 and z=x+y
equal to the sum of the measures of the remote exterior angles
probability

9. Angles that equal 180 degrees
supplementary angles
when finding a solution set
triangle or straight line
no solutions

10. /100 (the ______ number over 100)
the perpendicular distance
itself
x + y
percent

11. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
always positive or zero
associative axiom of addition and multiplication
x>y
xy

12. The quotient of any quantity (except 0) divided by zero is infinity
and
never divide by zero
hexagon
cube

13. A line that is perpendicular to a radius and that passes through only one point of the circle.
tangent
even
combinations
expression of an odd number

14. In transversals
equal to the sum of the measures of the remote exterior angles
expression of an even number
equilateral triangle
all acute angles are equal and all obtuse angles are equal

15. The difference between x and y
triangle or straight line
v(x2-x1)²+ (y2-y1)²
x - y
angle

16. R²
pythagorean theorem
diameter of circle
properties of parallelograms
average

17. Volume= 4/3?r² surface area= 4?r²
n= mx/100
inconsistent lines
sphere
angle a and angle b = angle d

18. Intersect at only one point - the point is the only solution to the pair of equations
consistent lines
isosceles triangle
(y-x/x)100
equals

19. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
polygon
n percent less than x
xy>0
22/7 or 3.14

20. The point where the line crosses the x-axis - y will always = 0 in this case
properties of a rectangle
n= mx/100
360 degrees
x intercept

21. (x-y)(x-y) = (x-y)²
right triangle
tangent
x²-2xy+y²
range of a relation

22. y years from now
+y
-y
odd
right triangle

23. One angle is equal 90° and the other two angles are equal to the sum of 90°
slope of a line joining two points
x>y and w>z
right triangle
xy< 0

24. Any line that connects two points on a circle.
when finding a solution set
+y
the percent of increase
chord

25. 1/y-1/x x -y ? 0
closed set
x-y/xy
properties of a rhombus
x<0

26. x(y+z)
xy + xz
x is greater than y
x²-y²
or

27. x < y or y> x
x is less than y
chord
the perpendicular distance
acute angle

28. 180°
straight angle
percent
properties of a rhombus
acute angle

29. If y²= x - then y =
coinciding lines
closed set
±vx
hemisphere

30. x + (n/100)x
even
n percent greater than x
x<0 and z=x+y
angle inscribed in semicircle

31. Any number squared or raised to an even power is
always positive or zero
diameter
angle a and angle b = angle d
never divide by zero

32. Volume=lwh surface area= 2wh + 2hl + 2lw
range of a relation
v2/2 or .71
determining if a number is prime
rectangular solid

33. If b²-4ac < 0 - there are
simultaneous equations in 2 unknowns
pythagorean theorem
no solutions
xy>0

34. ?
perpendicular
similar triangles
xy-xz
expression of an odd number

35. Is a rectangular rhombus 1. all four sides are equal 2. opposite pairs of sides are parallel 3. diagonals are equal - are perpendicular to each other - and bisect each other. 4. all the angles are right triangles 5. diagonals intersect the vertices a
average
properties of a square
a?n
diameter

36. All odd numbers end in the digits of
x + y
1 - 3 - 5 - 7 - 9
0 - 2 - 4 - 6 - 8
1.4

37. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
similar triangles
hexagon
commutative axiom of addition and multiplication
domain of a relation

38. x>0 and y>0 or x<0 and y<0
even
x>y>0 and w>z>0
the percent of decrease
xy>0

39. The point where the line crosses the y-axis - x will always = 0 in this case
y intercept
cube
0 - 2 - 4 - 6 - 8
angle a and angle b = angle d

40. The sum of the interior angles is
finding the union of sets
cylinder
180 degrees
negative

41. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)
equal
central angle
angle a and angle b = angle d
parallelogram

42. Between 90° and 180°
slope of a line joining two points
set
obtuse angle
x and y

43. 5+3= 3+5 and 5 x 3= 3 x 5
find the intersection of two sets
rectangle
commutative axiom of addition and multiplication
standard deviation

44. 360°
360 degrees
y-x
circle
cylinder

45. Sum of two odd numbers is
1.4
obtuse angle
even
right triangle

46. x more than y
xy< 0
permutations
x + y
simultaneous equations

47. In a triangle - the greatest angles lies
opposite the greatest side
xy + xz
find the intersection of two sets
x+y/xy

48. x younger than y
x - y
1
square
finding the union of sets

49. x(y-z)
times
properties of a rectangle
xy-xz
v2/2 or .71

50. (amount of increase/original amount) x 100
commutative axiom of addition and multiplication
the percent of increase
right triangle
angle bisector