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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. 2k
times
no solutions
expression of an even number
trapezoid

2. Wx>wy
the last three numbers are divisible by 8
y-x
right triangle
w>0 and x>y

3. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
any variable
x-y
associative axiom of addition and multiplication
domain of a relation

4. V3
1.7
it is also divisible by 2 and 3
xy< 0
all acute angles are equal and all obtuse angles are equal

5. The sum of the interior angles is
xy-xz
180 degrees
±vx
equals

6. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
rectangular solid
approx sums
1/2
combinations

7. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
permutations
360 degrees
pythagorean theorem
1.7

8. In a triangle - the greatest angles lies
is a subset of
opposite the greatest side
right triangle
even

9. A°
or
1
(x/100)m= n
equal

10. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
360 degrees
regular polygon properties
x>y
a?n

11. Two tangents to a circle from the same point outside of the circle are always
angle a and angle b = angle d
or
equal
equilateral triangle

12. 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
approx sums
rectangle
belongs to
diameter of circle

13. 360°
pythagorean theorem
x-y
circle
permutations

14. x>0 and y>0 or x<0 and y<0
a<x<b
xy>0
all acute angles are equal and all obtuse angles are equal
the last digit is either 0 or 5

15. The percent increase from x to y (y>x)
pythagorean theorem
determining if a number is prime
(y-x/x)100
obtuse angle

16. ?
belongs to
w<0 and x>y
equilateral triangle
Axioms

17. Any integer is divisible by 4 - if
the last two digits of the number make a number that is divisible by 4
radius
xy + xz
square

18. What % of m is n
x-y
1
the last two digits of the number make a number that is divisible by 4
(x/100)m= n

19. y<x
area of a triangle
isosceles triangle
x>y
b+d>c+e

20. 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)
implies
v2/2 or .71
x>y and w>z
probability

21. Any number squared or raised to an even power is
equilateral triangle
area of a triangle
a side< b side
always positive or zero

22. ?
diagonal of a square
implies
is a subset of
1 - 3 - 5 - 7 - 9

23. The product of an even number of negative numbers is
(x-y/x)100
times
pythagorean theorem
positive

24. If the base angles of a triangle are equal - the triangle is
x>y and y>z
isosceles
a set
determining if a number is prime

25. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
diameter of circle
right triangle
polygon
isosceles triangle

26. ?if y angle< x angle - then
inscribed angle
a side< b side
x percent
x>y and y>z

27. Less than 90°
(x/100)m= n
reflex angle
acute angle
diameter of circle

28. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
Axioms
null set
implies
the percent of increase

29. (x-y)(x-y) = (x-y)²
central angle
x²-2xy+y²
radius of a circle
a?n

30. The angles opposite to sides that are equal in length have
cube
equal angles
a
tangent

31. If ?B > ?A - then
x<0
x intercept
then side b > side a
obtuse angle

32. (sum of individual quantities or measures/ total number of quantities or measures)
360 degrees
1.4
average
combinations

33. C²= a²+b² and angle x and y are equal to 90°
approx sums
x>y
triangle or straight line
right triangle

34. 9-40-41
probability
equal
right triangle
tangent

35. Are the lines that bisect and are perpendicular to each of the three sides. The point where they meet is the center of the circumscribed circle.
v(x2-x1)²+ (y2-y1)²
obtuse angle
perpendicular bisectors
v2/2 or .71

36. x - (n/100)x
n percent less than x
x>y and w>z
even
all acute angles are equal and all obtuse angles are equal

37. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
xy
area of a triangle
equilateral triangle
permutations

38. 1/2d
the percent of increase
belongs to
radius of a circle
permutations

39. The measure of an interior angle is
a relation is a function
equal to the sum of the measures of the remote exterior angles
consistent lines
y angle< x angle

40. All odd numbers end in the digits of
trapezoid
360 degrees
1 - 3 - 5 - 7 - 9
xy + xz

41. ?
x>y and y>z
medians of a triangle
slope of a line joining two points
and

42. Area= l x w perimeter = (2l)(2w)
the last digit is 0
equals
area of a triangle
rectangle

43. x +z > y+z
average
permutations
even
x>y

44. z>y
even
equilateral triangle
right triangle
x<0 and z=x+y

45. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
slope of a line joining two points
set
the last two digits of the number make a number that is divisible by 4
domain of a relation

46. x²
pythagorean theorem
odd
the square of x
never divide by zero

47. Then their intersection is the null or empty set - written as Ø
domain of a relation
if two sets have no elements in common
expression of an even number
x is less than y

48. Volume=lwh surface area= 2wh + 2hl + 2lw
right triangle
rectangular solid
v3/2 or .87
1 - 3 - 5 - 7 - 9

49. 1/x + 1/y x -y ? 0
or
isosceles
then side b > side a
x+y/xy

50. Sin 30°
greater than c
two solutions
c x (john'S age)
1/2