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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. Any line that connects two points on a circle.
x-y
radius of a circle
parallelogram
chord

2. All three sides and all three angles are equal
1/2
equilateral triangle
odd
xy + xz

3. y years ago
similar triangles
straight angle
-y
right triangle

4. 180°
radius
negative reciprocal of the other
cube
straight angle

5. 2k
expression of an even number
equal to the slope of the other
inconsistent lines
if the last digit of the number is 0 -2 -4 -6 -8

6. 1/an
x and y
a?n
equilateral triangle
x>y and y>z

7. Sin 30°
1/2
regular polygon properties
-y
coinciding lines

8. xn<0 if n is odd and xn>0 if n is even
coinciding lines
right triangle
x<0
Axioms

9. If y²= x - then y =
or
±vx
midpoint of a line segment joining 2 parts
negative reciprocal of the other

10. Set of solutions to an equation
solution set
the sum of parts
right triangle
implies

11. 3-4-5
equal
negative
approx sums
right triangle

12. ?
n= mx/100
and
distributive axiom
combinations

13. A¹
x<0 and z=x+y
negative
area of a triangle
a

14. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
angle a and angle b = angle d
rectangular solid
y angle< x angle
trapezoid

15. | |
isosceles
parallel
(x/100)m= n
the sum of its digits is divisible by 9

16. The angles opposite to sides that are equal in length have
equal angles
angle
properties of parallelograms
equilateral triangle

17. A°
domain of a relation
quadratic equations
1
xy< 0

18. 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
triangle or straight line
approx square roots
approx products
two solutions

19. Any integer is divisible by 10 - if
equal angles
the last digit is 0
the square of x
regular polygon properties

20. Any integer is divisible by 3 - if
square
even
the sum of its digits is divisible by 3
coinciding lines

21. Any number squared or raised to an even power is
angle
1.4
1.7
always positive or zero

22. A/A¹ = B/B¹= C/C¹
null set
belongs to
similar triangles
triangle or straight line

23. 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
a relation is a function
inscribed angle
regular polygon properties
finding the union of sets

24. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
set
right angle
associative axiom of addition and multiplication
n percent less than x

25. R²
right triangle
the sum of parts
diameter of circle
x - y

26. V2/2- v2/2 - 1 (90-45-45)
1
1.4
a set
isosceles triangle

27. The distance from the center of the circle
right triangle
if two sets have no elements in common
simultaneous equations in 2 unknowns
radius

28. The quotient of any quantity (except 0) divided by zero is infinity
x + y
coinciding lines
never divide by zero
relation

29. 1-1-v2 (90-45-45)
inconsistent lines
right triangle
closed set
properties of a rectangle

30. One angle is equal 90° and the other two angles are equal to the sum of 90°
y intercept
the last digit is either 0 or 5
right triangle
360 degrees

31. A line that is perpendicular to a radius and that passes through only one point of the circle.
tangent
equal
even
central angle

32. 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
x²-y²
v(x2-x1)²+ (y2-y1)²
the last two digits of the number make a number that is divisible by 4
approx sums

33. 3(4+1)= 3 x 4 + 3 x 1
parallel
x+y/xy
distributive axiom
when finding a solution set

34. x(y-z)
xy-xz
right triangle
average
radius of a circle

35. When the elements of a set are ordered pairs
relation
standard deviation
or
-y

36. Any integer is divisible by 4 - if
the last two digits of the number make a number that is divisible by 4
one solution
angle bisector
right triangle

37. ?
rectangle
trapezoid
radius of a circle
is a subset of

38. y years from now
+y
-y
approx sums
the sum of its digits is divisible by 9

39. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
v(x2-x1)²+ (y2-y1)²
x + y
medians of a triangle
properties of parallelograms

40. Any arc length is less than
xy
right triangle
360 degrees
negative

41. (x-y)(x-y) = (x-y)²
x²-2xy+y²
finding the union of sets
x - y
pythagorean theorem

42. Side a +side b of a ? is
and
radius of a circle
1
greater than c

43. Less than 90°
one solution
or
acute angle
x>y

44. The increase from x to y
altitude of a triangle
approx products
y-x
polygon

45. Sum of two even numbers is
y intercept
similar triangles
x is less than y
even

46. The sum of the interior angles is
relation
is a subset of
solution set
180 degrees

47. The product of an even number of negative numbers is
positive
when finding a solution set
null set
a

48. x - (n/100)x
quadratic equations
n percent less than x
the sum of parts
0 - 2 - 4 - 6 - 8

49. The measure of an interior angle is
itself
odd
opposite the greatest side
equal to the sum of the measures of the remote exterior angles

50. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
standard deviation
similar triangles
midpoint of a line segment joining 2 parts
permutations