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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. x>0 and y>0 or x<0 and y<0
slope of a line joining two points
xy>0
perpendicular bisectors
then side b > side a

2. 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
two solutions
x percent
approx sums
Axioms

3. x < y or y> x
x>y>0 and w>z>0
equilateral triangle
1 - 3 - 5 - 7 - 9
x is less than y

4. 3-4-5
parallelogram
closed set
even
right triangle

5. ?
associative axiom of addition and multiplication
diameter of circle
angle
c x (john'S age)

6. (x+y) (x-y)
x²-y²
all acute angles are equal and all obtuse angles are equal
equals
x and y

7. Area= 1/2bh perimeter= a+b+c
triangle
a+b+d=c+d
angle a and angle b = angle d
equal to the slope of the other

8. Volume= e(edge)³ surface area= 6e²
equilateral triangle
cube
pythagorean theorem
a+b+d=c+d

9. If b²-4ac < 0 - there are
angle a and angle b = angle d
Axioms
x+y/xy
no solutions

10. y years from now
belongs to
+y
equal
w>0 and x>y

11. All three sides and all three angles are equal
x>y>0 and w>z>0
equilateral triangle
negative
x>y

12. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
a+b+d=c+d
hexagon
1
medians of a triangle

13. Is the relation with ALL ordered pairs REVERSED.
a side< b side
b is the y-intercept
inverse of a relation
inscribed angle

14. 1-1-v2 (90-45-45)
probability
x%
right triangle
approx sums

15. If the base angles of a triangle are equal - the triangle is
1 - 3 - 5 - 7 - 9
permutations
isosceles
±vx

16. The product of an odd number of negative numbers is
and
commutative axiom of addition and multiplication
negative
right triangle

17. 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}
x + y
radius
when finding a solution set
x<0

18. 360°
semicircle
the last two digits of the number make a number that is divisible by 4
circle
-y

19. x>0 and y<0 or x<0 and y >0
the perpendicular distance
altitude of a triangle
vertical angles
xy< 0

20. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
vertical angles
x + y
equilateral triangle
greater than c

21. A line that is perpendicular to a radius and that passes through only one point of the circle.
parallel
tangent
opposite the greatest side
right triangle

22. Sum of two even numbers is
times
even
slope of a line joining two points
the last three numbers are divisible by 8

23. 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
simultaneous equations
vertical angles
xy-xz
approx square roots

24. x+w> y+z
x>y and w>z
or
relation
x-y

25. When the elements of a set are ordered pairs
relation
the percent of increase
a+b+d=c+d
never divide by zero

26. Sum of an odd and an even number is
relation
sphere
odd
perpendicular

27. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
two solutions
angle
midpoint of a line segment joining 2 parts
a set

28. 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
1
altitude of a triangle
properties of a rhombus
set

29. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
parallelogram
vertical angles
inscribed angle
semicircle

30. ?
inconsistent lines
is a subset of
cylinder
x percent

31. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
c x (john'S age)
the third side
cube

32. In transversals
properties of a square
b is the y-intercept
all acute angles are equal and all obtuse angles are equal
two solutions

33. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
similar triangles
odd
right triangle
cylinder

34. ?
and
domain of a relation
it is also divisible by 2 and 3
x - y

35. x²
inscribed angle
straight angle
right triangle
the square of x

36. 1/y-1/x x -y ? 0
one solution
perpendicular bisectors
x-y/xy
always positive or zero

37. Which - what
the last digit is either 0 or 5
any variable
consistent lines
even

38. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
right triangle
360 degrees
inconsistent lines
pythagorean theorem

39. 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.
similar triangles
expression of an even number
central angle
x²-y²

40. If under the operation - any two members of the set constitute an element of the set ( * the product of the elements multiplied by themselves must also be an element of the set*)
supplementary angles
the square of x
closed set
percent

41. 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
x is less than y
permutations
finding the union of sets
x²-y²

42. x/100
x percent
parallelogram
x + y
triangle

43. 1-1-1 (60-60-60)
equilateral triangle
right triangle
range of a relation
x%

44. 8-15-17
right triangle
then side b > side a
solution set
and

45. (amount of decrease/original amount) x 100
cylinder
equal angles
any variable
the percent of decrease

46. A subset of a set is
right triangle
odd
a set
midpoint of a line segment joining 2 parts

47. The whole equals
the square of x
(x/100)m= n
acute angle
the sum of parts

48. 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
1/2
standard deviation
opposite the greatest side
right triangle

49. 90°
similar triangles
determining if a number is prime
equilateral triangle
right angle

50. Is the set of the second components of the ordered pairs
the last digit is 0
implies
equal to the slope of the other
range of a relation