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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. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
approx products
a<x<b
v2/2 or .71
trapezoid

2. x older than y
associative axiom of addition and multiplication
radius
x + y
range of a relation

3. B>c+ d>e
hexagon
it is also divisible by 2 and 3
x - y
b+d>c+e

4. x > y or y< x
equal angles
a set
x is greater than y
x - y

5. 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
angle bisector
x+y/xy
standard deviation
and

6. 1/x + 1/y x -y ? 0
domain of a relation
x+y/xy
diameter
1.4

7. (x-y)(x-y) = (x-y)²
any variable
x-y/xy
x²-2xy+y²
x + y

8. 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.
perpendicular bisectors
a<x<b
polygon
right triangle

9. xn<0 if n is odd and xn>0 if n is even
x<0
y-x
equal to the slope of the other
average

10. (x+y)(x+y)= (x+y)²
(x/100)m= n
x>y
a set
x²+ 2xy+y²

11. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
x - y
times
rectangular solid

12. x - (n/100)x
n percent less than x
isosceles triangle
altitude of a triangle
right triangle

13. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
v(x2-x1)²+ (y2-y1)²
x - y
equal to the sum of the measures of the remote exterior angles

14. xw> yz
x>y>0 and w>z>0
trapezoid
1.4
the last digit is either 0 or 5

15. 1/y-1/x x -y ? 0
right triangle
approx products
x-y/xy
1.7

16. x+w> y+z
altitude of a triangle
y-x
x>y and w>z
greater than c

17. C²= a²+b² and angle x and y are equal to 90°
right triangle
quadratic equations
two solutions
square

18. Any integer is divisible by 8 if
two solutions
the last three numbers are divisible by 8
vertical angles
radius

19. 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
±vx
approx sums
never divide by zero
reflex angle

20. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
x+y/xy
implies
right triangle
xy

21. A¹
and
a
diagonal of a square
parallelogram

22. ?
or
trapezoid
x - y
xy>0

23. The distance from the center of the circle
perpendicular bisectors
radius
y intercept
the perpendicular distance

24. All three sides and all three angles are equal
combinations
a
trapezoid
equilateral triangle

25. The point where the line crosses the y-axis - x will always = 0 in this case
y intercept
the square of x
vertical angles
y angle< x angle

26. The product of an even number of negative numbers is
hexagon
semicircle
permutations
positive

27. Angles that equal 180 degrees
the last digit is 0
supplementary angles
the sum of its digits is divisible by 9
w>0 and x>y

28. V2
and
a set
the perpendicular distance
1.4

29. (sum of individual quantities or measures/ total number of quantities or measures)
if two sets have no elements in common
perpendicular
the percent of decrease
average

30. y years ago
3.16
-y
the perpendicular distance
relation

31. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
1/2
commutative axiom of addition and multiplication
associative axiom of addition and multiplication
right triangle

32. The point where the line crosses the x-axis - y will always = 0 in this case
all acute angles are equal and all obtuse angles are equal
x-y/xy
x intercept
implies

33. Is the relation with ALL ordered pairs REVERSED.
x-y
x>y
inverse of a relation
w>0 and x>y

34. All odd numbers end in the digits of
hemisphere
set
the sum of parts
1 - 3 - 5 - 7 - 9

35. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
Axioms
equals
right triangle
odd

36. Product of two odd numbers is
odd
semicircle
negative reciprocal of the other
x>y

37. x(y+z)
the square of x
xy + xz
equals
straight angle

38. Integer is divisible by 2
all acute angles are equal and all obtuse angles are equal
if the last digit of the number is 0 -2 -4 -6 -8
then side b > side a
vertical angles

39. y years from now
+y
a<x<b
Axioms
hexagon

40. 1/2bh
opposite the greatest side
the square of x
area of a triangle
approx square roots

41. The measure of an interior angle is
360 degrees
equal to the sum of the measures of the remote exterior angles
(x/100)m= n
vertical angles

42. Ax= by + C
simultaneous equations in 2 unknowns
properties of a square
right triangle
360 degrees

43. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
negative reciprocal of the other
similar triangles
x intercept
always positive or zero

44. Any arc length is less than
diameter
(x-y/x)100
360 degrees
no solutions

45. x>0 and y<0 or x<0 and y >0
when finding a solution set
xy< 0
cylinder
area of a triangle

46. 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 -
properties of a square
isosceles
right triangle
determining if a number is prime

47. One angle is equal 90° and the other two angles are equal to the sum of 90°
domain of a relation
right triangle
trapezoid
the sum of parts

48. When the elements of a set are ordered pairs
the third side
relation
pythagorean theorem
radius of a circle

49. 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)
medians of a triangle
v3/2 or .87
right triangle
probability

50. Of
x>y
solution set
standard deviation
times