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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. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
Axioms
x - y
if two sets have no elements in common
sphere

2. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
x+y/xy
cylinder
the last digit is either 0 or 5
vertical angles

3. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
y-x
associative axiom of addition and multiplication
domain of a relation

4. z>y
x<0 and z=x+y
the sum of its digits is divisible by 3
xy
acute angle

5. Volume= 4/3?r² surface area= 4?r²
quadratic equations
angle inscribed in semicircle
right triangle
sphere

6. Diagonal= sv2
equal
diagonal of a square
parallel
it is also divisible by 2 and 3

7. The distance from the center of the circle
isosceles triangle
determining if a number is prime
radius
xy>0

8. ?
x - y
properties of a rhombus
radius of a circle
perpendicular

9. The quotient of any quantity (except 0) divided by zero is infinity
never divide by zero
right triangle
greater than c
belongs to

10. 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
properties of a rectangle
b+d>c+e
x - y
a+b+d=c+d

11. The point where the line crosses the x-axis - y will always = 0 in this case
1.7
the percent of decrease
x intercept
xy + xz

12. Product of an even number and any other number is
when finding a solution set
xy>0
even
x²-2xy+y²

13. Integer is divisible by 2
if the last digit of the number is 0 -2 -4 -6 -8
the last three numbers are divisible by 8
any variable
x is less than y

14. Every set is a subset of
x<0
permutations
itself
x-y

15. | |
x>y and y>z
parallel
(y-x/x)100
relation

16. Between 180° and 360°
approx square roots
reflex angle
relation
if two sets have no elements in common

17. Of
equilateral triangle
right triangle
probability
times

18. Between 90° and 180°
greater than c
closed set
radius of a circle
obtuse angle

19. Volume= e(edge)³ surface area= 6e²
two solutions
cube
y-x
a?n

20. ? if a side is equal to b side then - the opposite corresponding angles are
isosceles
it is also divisible by 2 and 3
equal
expression of an even number

21. The product of an even number of negative numbers is
22/7 or 3.14
expression of an odd number
properties of a rhombus
positive

22. 8-15-17
(y-x/x)100
approx products
x<0
right triangle

23. 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
even
c x (john'S age)
pythagorean theorem

24. x less than y
no solutions
180 degrees
the sum of its digits is divisible by 9
y-x

25. 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)
x-y/xy
angle a and angle b = angle d
straight angle
Axioms

26. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
xy + xz
straight angle
xy>0
angle bisector

27. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
consistent lines
midpoint of a line segment joining 2 parts
cylinder
xy-xz

28. y years ago
-y
always positive or zero
the percent of increase
right triangle

29. Any integer is divisible by 4 - if
acute angle
sphere
commutative axiom of addition and multiplication
the last two digits of the number make a number that is divisible by 4

30. Ax= by + C
a
simultaneous equations in 2 unknowns
b is the y-intercept
±vx

31. x + y
expression of an even number
set
equilateral triangle
x and y

32. 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
approx products
1.7
right triangle
area of a triangle

33. 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
even
3.16
x>y

34. V10
3.16
if the last digit of the number is 0 -2 -4 -6 -8
right triangle
itself

35. ?
cylinder
even
implies
times

36. The point where the line crosses the y-axis - x will always = 0 in this case
vertical angles
consistent lines
greater than c
y intercept

37. 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 two pairs of congruent triangles
properties of parallelograms
a set
diameter of circle
chord

38. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
1.7
implies
hemisphere
x percent

39. x+w> y+z
(x-y/x)100
x>y and w>z
expression of an even number
0 - 2 - 4 - 6 - 8

40. 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
finding the union of sets
expression of an even number
x>y and w>z
acute angle

41. ?
one solution
22/7 or 3.14
the sum of its digits is divisible by 9
relation

42. V3
360 degrees
acute angle
the square of x
1.7

43. The sume of x and y
x + y
similar triangles
even
cube

44. /100 (the ______ number over 100)
percent
v3/2 or .87
isosceles
it is also divisible by 2 and 3

45. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
diagonal of a square
negative reciprocal of the other
supplementary angles
polygon

46. 1-1-v2 (90-45-45)
x>y
right triangle
x + y
diameter of circle

47. Area= 1/2bh perimeter= a+b+c
a
trapezoid
3.16
triangle

48. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
all acute angles are equal and all obtuse angles are equal
vertical angles
properties of a rhombus
similar triangles

49. 5-12-13
y-x
properties of a rectangle
all acute angles are equal and all obtuse angles are equal
right triangle

50. The distance between two parallel lines or from a point to a line always means
the perpendicular distance
a side< b side
always positive or zero
then side b > side a