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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. 1-v3- 2 (90-30-60)
right triangle
1
similar triangles
x is greater than y

2. Ax= by + C
isosceles triangle
solution set
simultaneous equations in 2 unknowns
pythagorean theorem

3. Then their intersection is the null or empty set - written as Ø
if two sets have no elements in common
x-y/xy
b is the y-intercept
y angle< x angle

4. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
similar triangles
w<0 and x>y
commutative axiom of addition and multiplication
approx sums

5. V2/2- v2/2 - 1 (90-45-45)
the last three numbers are divisible by 8
midpoint of a line segment joining 2 parts
simultaneous equations
isosceles triangle

6. If two lines are parallel - the slope of one is
right triangle
semicircle
standard deviation
equal to the slope of the other

7. If b²-4ac > 0 there are
two solutions
if the last digit of the number is 0 -2 -4 -6 -8
distributive axiom
1.7

8. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
1
cylinder
circle
finding the union of sets

9. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
x - y
1/2
even

10. x(y+z)
x + y
a?n
xy + xz
x percent

11. x>0 and y>0 or x<0 and y<0
it is also divisible by 2 and 3
xy>0
all acute angles are equal and all obtuse angles are equal
x + y

12. Any integer is divisible by 8 if
inconsistent lines
the last three numbers are divisible by 8
xy< 0
central angle

13. (x+y) (x-y)
right triangle
x²-y²
properties of a rectangle
x<0 and z=x+y

14. If the each element of the domain occurs only once as a FIRST component
rectangle
angle
a relation is a function
similar triangles

15. 9-40-41
set
always positive or zero
right triangle
angle a and angle b = angle d

16. Is the set of the first components of the ordered pairs.
xy< 0
right triangle
domain of a relation
associative axiom of addition and multiplication

17. 5+3= 3+5 and 5 x 3= 3 x 5
perpendicular
commutative axiom of addition and multiplication
the last digit is either 0 or 5
vertical angles

18. ?if y angle< x angle - then
a side< b side
sphere
x²-y²
equilateral triangle

19. Side a +side b of a ? is
x is greater than y
n= mx/100
even
greater than c

20. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
trapezoid
if the last digit of the number is 0 -2 -4 -6 -8
polygon
semicircle

21. 180°
x-y/xy
v(x2-x1)²+ (y2-y1)²
x percent
straight angle

22. Sin 30°
vertical angles
simultaneous equations in 2 unknowns
midpoint of a line segment joining 2 parts
1/2

23. 7-24-25
any variable
right triangle
inconsistent lines
hexagon

24. xn<0 if n is odd and xn>0 if n is even
right triangle
x<0
greater than c
the square of x

25. The product of x and y
supplementary angles
approx square roots
xy
all acute angles are equal and all obtuse angles are equal

26. C²= a²+b² and angle x and y are equal to 90°
average
the percent of decrease
y angle< x angle
right triangle

27. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
inconsistent lines
midpoint of a line segment joining 2 parts
n percent greater than x
expression of an even number

28. A°
right triangle
pythagorean theorem
1
tangent

29. Area = ?r² circumference(perimeter)= 2?r
circle
parallelogram
closed set
(x/100)m= n

30. x more than y
polygon
distributive axiom
y-x
x + y

31. Product of two odd numbers is
or
radius of a circle
0 - 2 - 4 - 6 - 8
odd

32. When two parallel lines are crossed by a third straight line (transversal) - then
all acute angles are equal and all obtuse angles are equal
perpendicular
v2/2 or .71
x<0 and z=x+y

33. If an equation can be put into the form y= mx +b - then
b is the y-intercept
itself
xy
x²-y²

34. z>y
average
x<0 and z=x+y
inconsistent lines
even

35. x/100
probability
x%
equal to the sum of the measures of the remote exterior angles
properties of parallelograms

36. ?
or
properties of a square
a relation is a function
isosceles

37. 360°
approx products
circle
even
parallel

38. Angles directly across each other are equal
a+b+d=c+d
isosceles triangle
altitude of a triangle
vertical angles

39. Volume= e(edge)³ surface area= 6e²
belongs to
the sum of parts
cube
x²+ 2xy+y²

40. A+b=c+ d=d
hemisphere
y angle< x angle
a+b+d=c+d
x + y

41. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
1.7
set
equal angles
angle inscribed in semicircle

42. R²
coinciding lines
a side< b side
equal to the slope of the other
diameter of circle

43. Is a subset of every set
negative reciprocal of the other
null set
3.16
vertical angles

44. 90°
slope of a line joining two points
right angle
right triangle
the percent of decrease

45. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
obtuse angle
equilateral triangle
sphere
approx sums

46. 1/y-1/x x -y ? 0
x-y/xy
1/2
the last digit is 0
triangle or straight line

47. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
right triangle
inverse of a relation
cylinder
right triangle

48. x/100
inconsistent lines
b is the y-intercept
x percent
x + y

49. The whole equals
any variable
x<0
solution set
the sum of parts

50. x < y or y> x
permutations
even
trapezoid
x is less than y