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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. 9-40-41
right triangle
the sum of its digits is divisible by 9
two solutions
standard deviation

2. 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
always positive or zero
x²-2xy+y²
x<0 and z=x+y
standard deviation

3. 1/an
right triangle
a?n
commutative axiom of addition and multiplication
±vx

4. ? if a side is equal to b side then - the opposite corresponding angles are
(y-x/x)100
x intercept
equal
finding the union of sets

5. All odd numbers end in the digits of
vertical angles
1 - 3 - 5 - 7 - 9
right triangle
never divide by zero

6. Any integer is divisible by 10 - if
acute angle
the last digit is 0
a set
similar triangles

7. Wx<wy
w<0 and x>y
standard deviation
the sum of its digits is divisible by 3
closed set

8. A subset of a set is
greater than c
a+b+d=c+d
a set
3.16

9. Set of solutions to an equation
the last digit is 0
x>y>0 and w>z>0
solution set
x²+ 2xy+y²

10. If the base angles of a triangle are equal - the triangle is
polygon
x>y and w>z
a side< b side
isosceles

11. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
semicircle
isosceles
triangle or straight line
properties of parallelograms

12. The increase from x to y
xy< 0
relation
combinations
y-x

13. x/100
vertical angles
right triangle
x percent
b is the y-intercept

14. Angles that equal 180 degrees
(x/100)m= n
the sum of its digits is divisible by 3
supplementary angles
1.4

15. 90°
range of a relation
equilateral triangle
xy< 0
right angle

16. A°
isosceles triangle
y angle< x angle
1
no solutions

17. The product of x and y
central angle
xy
itself
no solutions

18. Between 90° and 180°
standard deviation
obtuse angle
triangle
trapezoid

19. (amount of increase/original amount) x 100
right triangle
the percent of increase
radius of a circle
midpoint of a line segment joining 2 parts

20. x>0 and y>0 or x<0 and y<0
belongs to
right triangle
angle bisector
xy>0

21. The sum of any two sides of a triangle is greater than
the third side
a
associative axiom of addition and multiplication
the percent of decrease

22. 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
simultaneous equations
coinciding lines
permutations
quadratic equations

23. In transversals
all acute angles are equal and all obtuse angles are equal
diameter
inconsistent lines
v(x2-x1)²+ (y2-y1)²

24. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
x intercept
angle a and angle b = angle d
range of a relation

25. (sum of individual quantities or measures/ total number of quantities or measures)
relation
similar triangles
average
x + y

26. x +z > y+z
(x-y/x)100
the perpendicular distance
equilateral triangle
x>y

27. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
find the intersection of two sets
central angle
v(x2-x1)²+ (y2-y1)²
x - y

28. 2k + 1
expression of an odd number
no solutions
x²-y²
semicircle

29. The percent increase from x to y (y>x)
a+b+d=c+d
hemisphere
(y-x/x)100
polygon

30. Between 180° and 360°
right triangle
x²-2xy+y²
the last digit is 0
reflex angle

31. Is the relation with ALL ordered pairs REVERSED.
implies
inconsistent lines
distributive axiom
inverse of a relation

32. 2k
parallelogram
expression of an even number
right triangle
x>y

33. Any number squared or raised to an even power is
it is also divisible by 2 and 3
always positive or zero
a
22/7 or 3.14

34. 7-24-25
right triangle
simultaneous equations
diagonal of a square
c x (john'S age)

35. /100 (the ______ number over 100)
x²+ 2xy+y²
percent
circle
the third side

36. The product of an even number of negative numbers is
right triangle
parallelogram
diameter
positive

37. 1/2bh
area of a triangle
combinations
approx sums
(x-y/x)100

38. In a triangle - the greatest angles lies
opposite the greatest side
inscribed angle
y angle< x angle
even

39. Area= l x w perimeter = (2l)(2w)
rectangle
y angle< x angle
expression of an odd number
the sum of its digits is divisible by 9

40. y years from now
x + y
+y
right triangle
cylinder

41. The distance between two parallel lines or from a point to a line always means
standard deviation
all acute angles are equal and all obtuse angles are equal
the perpendicular distance
right triangle

42. Integer is divisible by 2
set
v2/2 or .71
negative reciprocal of the other
if the last digit of the number is 0 -2 -4 -6 -8

43. 8-15-17
inconsistent lines
approx products
a relation is a function
right triangle

44. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
1.7
simultaneous equations
opposite the greatest side
inconsistent lines

45. C times as old as john

46. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
the sum of its digits is divisible by 3
even
right triangle

47. z>y
x<0 and z=x+y
consistent lines
-y
y intercept

48. x > y or y< x
equilateral triangle
the percent of increase
x²-2xy+y²
x is greater than y

49. Every set is a subset of
itself
circle
rectangular solid
a<x<b

50. ? if a side < b side - then
y angle< x angle
never divide by zero
domain of a relation
equal angles