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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. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
right triangle
approx square roots
times
v2/2 or .71

2. 1-1-v2 (90-45-45)
x%
right triangle
xy< 0
a side< b side

3. Sin 45°
x²+ 2xy+y²
x>y and w>z
y-x
v2/2 or .71

4. 8-15-17
the percent of decrease
right triangle
(y-x/x)100
properties of a rectangle

5. (sum of individual quantities or measures/ total number of quantities or measures)
any variable
average
c x (john'S age)
trapezoid

6. A line that is perpendicular to a radius and that passes through only one point of the circle.
a<x<b
rectangular solid
tangent
right triangle

7. 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)
negative reciprocal of the other
probability
y-x
null set

8. The increase from x to y
slope of a line joining two points
standard deviation
y-x
x - y

9. 90°
right angle
polygon
y angle< x angle
average

10. Any integer is divisible by 3 - if
the sum of its digits is divisible by 3
even
medians of a triangle
the sum of parts

11. The point where the line crosses the y-axis - x will always = 0 in this case
any variable
null set
y intercept
rectangular solid

12. Are the lines drawn from each vertex to the midpoint of its opposite side. they cross at a point that divides each individual ______into two parts.
medians of a triangle
greater than c
the last three numbers are divisible by 8
obtuse angle

13. Diagonals are perpendicular to each other and bisect the vertex angles 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 diagonal
equilateral triangle
the sum of its digits is divisible by 3
average
properties of a rhombus

14. x+w> y+z
x>y and w>z
x - y
solution set
right angle

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
finding the union of sets
x is greater than y
x+y/xy
area of a triangle

16. The percent increase from x to y (y>x)
(y-x/x)100
positive
a<x<b
vertical angles

17. ?
altitude of a triangle
or
a relation is a function
percent

18. A/A¹ = B/B¹= C/C¹
equal to the sum of the measures of the remote exterior angles
commutative axiom of addition and multiplication
similar triangles
properties of parallelograms

19. x older than y
approx products
area of a triangle
chord
x + y

20. ?if y angle< x angle - then
a side< b side
simultaneous equations in 2 unknowns
equal angles
3.16

21. The difference between x and y
closed set
hemisphere
v3/2 or .87
x - y

22. Every set is a subset of
itself
find the intersection of two sets
midpoint of a line segment joining 2 parts
xy

23. All three sides and all three angles are equal
equilateral triangle
semicircle
equal
xy-xz

24. The distance between two parallel lines or from a point to a line always means
isosceles triangle
always positive or zero
equilateral triangle
the perpendicular distance

25. The angles opposite to sides that are equal in length have
angle inscribed in semicircle
1
equal angles
determining if a number is prime

26. Area = ?r² circumference(perimeter)= 2?r
a relation is a function
relation
circle
greater than c

27. Any integer is divisible by 8 if
the last three numbers are divisible by 8
angle bisector
equal to the slope of the other
equal

28. Any arc length is less than
even
360 degrees
y angle< x angle
if two sets have no elements in common

29. 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.
rectangle
angle a and angle b = angle d
perpendicular bisectors
consistent lines

30. C²= a²+b² and angle x and y are equal to 90°
right triangle
expression of an odd number
x>y and w>z
finding the union of sets

31. Is - as - was - has - cost
odd
the perpendicular distance
equals
a+b+d=c+d

32. Sum of two even numbers is
greater than c
medians of a triangle
even
tangent

33. What % of m is n
equilateral triangle
positive
(x/100)m= n
x²+ 2xy+y²

34. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
coinciding lines
inconsistent lines
x>y and w>z
cylinder

35. B>c+ d>e
b+d>c+e
relation
a+b+d=c+d
1.7

36. A subset of a set is
properties of a square
x - y
a set
360 degrees

37. x(y+z)
equilateral triangle
xy + xz
right triangle
(x/100)m= n

38. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
or
similar triangles
xy + xz
associative axiom of addition and multiplication

39. 1/y-1/x x -y ? 0
tangent
22/7 or 3.14
domain of a relation
x-y/xy

40. Set of solutions to an equation
solution set
equilateral triangle
hemisphere
inscribed angle

41. Area= bh perimeter= 2a +2b
triangle
xy
parallelogram
associative axiom of addition and multiplication

42. 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
finding the union of sets
properties of a rectangle
polygon
a+b+d=c+d

43. ? if a side < b side - then
the sum of its digits is divisible by 3
c x (john'S age)
any variable
y angle< x angle

44. If y²= x - then y =
right triangle
xy>0
x>y
±vx

45. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
determining if a number is prime
chord
domain of a relation
even

46. 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
a?n
coinciding lines
0 - 2 - 4 - 6 - 8
solution set

47. A¹
equal
a
equilateral triangle
similar triangles

48. Area= 1/2bh perimeter= a+b+c
properties of parallelograms
x-y
angle
triangle

49. | |
circle
parallel
x + y
implies

50. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
y angle< x angle
1/2
similar triangles
inscribed angle