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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. xn<0 if n is odd and xn>0 if n is even
diagonal of a square
x<0
x - y
-y

2. The percent decrease from x to y ( y<x)
xy>0
(x-y/x)100
equilateral triangle
range of a relation

3. All three sides and all three angles are equal
a+b+d=c+d
a side< b side
greater than c
equilateral triangle

4. Sum of two even numbers is
obtuse angle
Axioms
even
v2/2 or .71

5. x more than y
x + y
x%
average
c x (john'S age)

6. 2k + 1
central angle
expression of an odd number
y-x
circle

7. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
times
Axioms
all acute angles are equal and all obtuse angles are equal
commutative axiom of addition and multiplication

8. Between 90° and 180°
x>y
obtuse angle
triangle or straight line
times

9. 5+3= 3+5 and 5 x 3= 3 x 5
commutative axiom of addition and multiplication
y-x
v3/2 or .87
even

10. ? if a side is equal to b side then - the opposite corresponding angles are
equal
right triangle
odd
finding the union of sets

11. xw> yz
equal angles
the third side
x>y>0 and w>z>0
right triangle

12. The decrease from x to y
x-y
properties of a rhombus
straight angle
range of a relation

13. V2
properties of a square
right triangle
x and y
1.4

14. x/100
x%
v3/2 or .87
equals
180 degrees

15. x(y+z)
360 degrees
commutative axiom of addition and multiplication
xy + xz
angle bisector

16. ?
angle
equals
equal angles
expression of an even number

17. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
altitude of a triangle
equal angles
is a subset of
reflex angle

18. If b²-4ac < 0 - there are
properties of a rectangle
standard deviation
no solutions
a relation is a function

19. R²
a relation is a function
approx products
diameter of circle
a set

20. A/A¹ = B/B¹= C/C¹
similar triangles
x-y
if the last digit of the number is 0 -2 -4 -6 -8
permutations

21. A¹
inverse of a relation
a
approx sums
relation

22. Volume= 4/3?r² surface area= 4?r²
sphere
triangle
x>y
1/2

23. (sum of individual quantities or measures/ total number of quantities or measures)
and
average
right triangle
range of a relation

24. Product of two odd numbers is
range of a relation
radius
odd
even

25. 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)
commutative axiom of addition and multiplication
x percent
combinations
x-y/xy

26. 1-1-1 (60-60-60)
trapezoid
x - y
equilateral triangle
x²+ 2xy+y²

27. 180°
v(x2-x1)²+ (y2-y1)²
associative axiom of addition and multiplication
x intercept
triangle or straight line

28. When the elements of a set are ordered pairs
x-y
inverse of a relation
a
relation

29. ?
(y-x/x)100
central angle
or
obtuse angle

30. x +z > y+z
similar triangles
the third side
itself
x>y

31. 8-15-17
cylinder
diameter
right triangle
x intercept

32. B>c+ d>e
null set
vertical angles
equal
b+d>c+e

33. All odd numbers end in the digits of
commutative axiom of addition and multiplication
x and y
the last three numbers are divisible by 8
1 - 3 - 5 - 7 - 9

34. C times as old as john

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35. ? if a side < b side - then
0 - 2 - 4 - 6 - 8
3.16
greater than c
y angle< x angle

36. (x+y)(x+y)= (x+y)²
medians of a triangle
x²+ 2xy+y²
simultaneous equations in 2 unknowns
consistent lines

37. 2k
x intercept
x>y and y>z
associative axiom of addition and multiplication
expression of an even number

38. V3
x<0
vertical angles
properties of a rhombus
1.7

39. The measure of an interior angle is
approx products
equal to the sum of the measures of the remote exterior angles
domain of a relation
right triangle

40. 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
negative
properties of a rectangle
area of a triangle
reflex angle

41. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both
the square of x
isosceles triangle
expression of an even number
coinciding lines

42. Less than 90°
find the intersection of two sets
1.7
acute angle
even

43. y<x
x>y
permutations
tangent
y angle< x angle

44. The sum of any two sides of a triangle is greater than
the third side
sphere
b+d>c+e
360 degrees

45. | |
parallel
x<0
(x/100)m= n
c x (john'S age)

46. Every set is a subset of
itself
equal to the sum of the measures of the remote exterior angles
rectangle
0 - 2 - 4 - 6 - 8

47. x²
-y
1.4
perpendicular
the square of x

48. 1-v3- 2 (90-30-60)
x<0
x>y
x-y/xy
right triangle

49. Intersect at only one point - the point is the only solution to the pair of equations
a<x<b
reflex angle
consistent lines
even

50. If ?B > ?A - then
area of a triangle
x²-y²
approx products
then side b > side a