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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 integer is divisible by 9 - if
inscribed angle
never divide by zero
the sum of its digits is divisible by 9
x - y

2. Any line that connects two points on a circle.
trapezoid
chord
perpendicular
right triangle

3. The whole equals
the sum of parts
parallelogram
straight angle
chord

4. 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)
x<0 and z=x+y
the percent of increase
combinations
if two sets have no elements in common

5. 3-4-5
range of a relation
right triangle
null set
a<x<b

6. Sin 45°
angle inscribed in semicircle
(x/100)m= n
v2/2 or .71
one solution

7. x + (n/100)x
when finding a solution set
+y
rectangle
n percent greater than x

8. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
0 - 2 - 4 - 6 - 8
equal to the sum of the measures of the remote exterior angles
the last two digits of the number make a number that is divisible by 4

9. One angle is equal 90° and the other two angles are equal to the sum of 90°
a+b+d=c+d
altitude of a triangle
right triangle
supplementary angles

10. C²= a²+b² and angle x and y are equal to 90°
sphere
right triangle
triangle or straight line
a

11. ?
sphere
and
(y-x/x)100
approx products

12. Is the set of the first components of the ordered pairs.
1 - 3 - 5 - 7 - 9
x + y
x²+ 2xy+y²
domain of a relation

13. Any integer is divisible by 10 - if
parallelogram
the last digit is 0
x>y>0 and w>z>0
equilateral triangle

14. Product of two odd numbers is
1
similar triangles
odd
simultaneous equations

15. 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
360 degrees
-y
times
finding the union of sets

16. Angle whose sides are two radii of the circle. The vertex of this angle is the center of the circle. The number of degrees is equal to the amount of arc length that the radd intercept.
central angle
a?n
two solutions
is a subset of

17. Between 180° and 360°
180 degrees
expression of an even number
x>y
reflex angle

18. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
set
1.7
the last digit is either 0 or 5
properties of a rectangle

19. All odd numbers end in the digits of
set
equilateral triangle
1 - 3 - 5 - 7 - 9
x>y

20. Any integer is divisible by 5 if
3.16
the perpendicular distance
the last digit is either 0 or 5
the last three numbers are divisible by 8

21. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
right triangle
b is the y-intercept
supplementary angles

22. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
v3/2 or .87
n percent less than x
the percent of increase
trapezoid

23. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
3.16
when finding a solution set
rectangular solid
equilateral triangle

24. xw> yz
probability
straight angle
x>y>0 and w>z>0
1

25. A<x and x<b
right triangle
a<x<b
simultaneous equations
right triangle

26. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
c x (john'S age)
hemisphere
x>y
x-y

27. 1/an
a?n
midpoint of a line segment joining 2 parts
coinciding lines
x>y

28. V3
1.7
x intercept
x + y
the perpendicular distance

29. A subset of a set is
opposite the greatest side
angle a and angle b = angle d
right triangle
a set

30. ?
right triangle
or
even
equal

31. Between 90° and 180°
times
belongs to
tangent
obtuse angle

32. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
right triangle
the perpendicular distance
standard deviation
right triangle

33. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
xy-xz
right triangle
one solution
find the intersection of two sets

34. x < y or y> x
x is less than y
hexagon
midpoint of a line segment joining 2 parts
probability

35. (x+y)(x+y)= (x+y)²
domain of a relation
when finding a solution set
obtuse angle
x²+ 2xy+y²

36. x + y
a?n
22/7 or 3.14
x and y
v2/2 or .71

37. 9-40-41
central angle
±vx
x is greater than y
right triangle

38. 1/y-1/x x -y ? 0
x-y/xy
22/7 or 3.14
x%
b+d>c+e

39. 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
v3/2 or .87
approx sums
quadratic equations
properties of a rectangle

40. Of
1/2
b+d>c+e
percent
times

41. x+w> y+z
+y
isosceles triangle
triangle
x>y and w>z

42. The distance from the center of the circle
right triangle
equals
radius
1/2

43. If ?B > ?A - then
or
commutative axiom of addition and multiplication
then side b > side a
rectangle

44. 360°
null set
circle
y angle< x angle
y intercept

45. Volume= e(edge)³ surface area= 6e²
c x (john'S age)
cube
the last digit is either 0 or 5
supplementary angles

46. z>y
isosceles triangle
all acute angles are equal and all obtuse angles are equal
v3/2 or .87
x<0 and z=x+y

47. Any integer is divisible by 3 - if
the sum of its digits is divisible by 3
x is less than y
x>y and y>z
average

48. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
isosceles triangle
the sum of its digits is divisible by 9
tangent
right triangle

49. 90°
it is also divisible by 2 and 3
a relation is a function
right triangle
right angle

50. Sum of two even numbers is
right triangle
negative
v3/2 or .87
even