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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. The measure of an interior angle is
hexagon
equal to the sum of the measures of the remote exterior angles
xy-xz
perpendicular bisectors

2. If b²-4ac < 0 - there are
it is also divisible by 2 and 3
no solutions
opposite the greatest side
1.4

3. Angles that equal 180 degrees
equal to the slope of the other
all acute angles are equal and all obtuse angles are equal
equilateral triangle
supplementary angles

4. The angles opposite to sides that are equal in length have
equal angles
1.7
x intercept
x is greater than y

5. 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)
angle a and angle b = angle d
+y
combinations
negative

6. The distance from the center of the circle
equals
radius
associative axiom of addition and multiplication
and

7. 1/x + 1/y x -y ? 0
supplementary angles
find the intersection of two sets
it is also divisible by 2 and 3
x+y/xy

8. Is the set of the second components of the ordered pairs
n percent greater than x
range of a relation
expression of an even number
x²-y²

9. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
midpoint of a line segment joining 2 parts
hemisphere
square
v2/2 or .71

10. /100 (the ______ number over 100)
x intercept
1 - 3 - 5 - 7 - 9
percent
x²-y²

11. When two parallel lines are crossed by a third straight line (transversal) - then
1
similar triangles
22/7 or 3.14
all acute angles are equal and all obtuse angles are equal

12. x +z > y+z
area of a triangle
equal
x + y
x>y

13. x - (n/100)x
slope of a line joining two points
n percent less than x
x-y
similar triangles

14. 360°
w<0 and x>y
circle
coinciding lines
a?n

15. ?
triangle
or
x and y
straight angle

16. Then their intersection is the null or empty set - written as Ø
xy-xz
if two sets have no elements in common
n percent less than x
inscribed angle

17. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
quadratic equations
+y
x>y
right triangle

18. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
approx sums
angle bisector
isosceles triangle
is a subset of

19. Sum of two even numbers is
x intercept
if the last digit of the number is 0 -2 -4 -6 -8
even
x - y

20. Any integer is divisible by 6 if
x<0
equilateral triangle
it is also divisible by 2 and 3
x-y/xy

21. 9-40-41
a?n
y-x
right triangle
radius

22. A/A¹ = B/B¹= C/C¹
similar triangles
x%
equal angles
the square of x

23. 7-24-25
implies
tangent
and
right triangle

24. C²= a²+b² and angle x and y are equal to 90°
x is less than y
isosceles triangle
n percent greater than x
right triangle

25. Volume= e(edge)³ surface area= 6e²
y intercept
negative reciprocal of the other
cube
a

26. Is the set of the first components of the ordered pairs.
a+b+d=c+d
radius
domain of a relation
equal

27. V10
closed set
3.16
inverse of a relation
c x (john'S age)

28. (sum of individual quantities or measures/ total number of quantities or measures)
angle inscribed in semicircle
even
average
consistent lines

29. x/100
x percent
(x-y/x)100
pythagorean theorem
radius

30. Diagonal= sv2
v2/2 or .71
diagonal of a square
the percent of decrease
1

31. All angles are right angles and diagonals are equal 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into
odd
medians of a triangle
properties of a rectangle
times

32. The product of an even number of negative numbers is
(x-y/x)100
hexagon
xy + xz
positive

33. x>0 and y>0 or x<0 and y<0
xy>0
equilateral triangle
semicircle
chord

34. Sin 30°
right triangle
x is greater than y
1/2
solution set

35. 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)
the sum of its digits is divisible by 9
acute angle
implies
combinations

36. ?if y angle< x angle - then
if two sets have no elements in common
b+d>c+e
a side< b side
c x (john'S age)

37. Any integer is divisible by 3 - if
1 - 3 - 5 - 7 - 9
associative axiom of addition and multiplication
the sum of its digits is divisible by 3
negative reciprocal of the other

38. Intersect at only one point - the point is the only solution to the pair of equations
x percent
consistent lines
equal
a set

39. When the elements of a set are ordered pairs
x-y
determining if a number is prime
relation
right triangle

40. 1-v3- 2 (90-30-60)
always positive or zero
is a subset of
closed set
right triangle

41. Ax= by + C
simultaneous equations in 2 unknowns
360 degrees
odd
determining if a number is prime

42. The product of x and y
xy
the last digit is either 0 or 5
a?n
is a subset of

43. 1/y-1/x x -y ? 0
v2/2 or .71
b is the y-intercept
properties of a rectangle
x-y/xy

44. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
is a subset of
cube
right triangle
inconsistent lines

45. x younger than y
x - y
x<0
any variable
expression of an even number

46. The percent decrease from x to y ( y<x)
distributive axiom
(x-y/x)100
x²-y²
y intercept

47. 1-1-v2 (90-45-45)
x is greater than y
right triangle
the last digit is 0
commutative axiom of addition and multiplication

48. 1. round the numbers being multiplied to one more place than it is being asked. 2. Multiply the rounded off numbers 3. round of product to desired number of places
properties of parallelograms
the percent of decrease
the sum of its digits is divisible by 9
approx products

49. Is the relation with ALL ordered pairs REVERSED.
simultaneous equations
inverse of a relation
radius of a circle
central angle

50. All three sides and all three angles are equal
parallel
altitude of a triangle
y angle< x angle
equilateral triangle