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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. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
+y
v(x2-x1)²+ (y2-y1)²
isosceles triangle
right triangle

2. x < y or y> x
if the last digit of the number is 0 -2 -4 -6 -8
x is less than y
Axioms
right triangle

3. 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
x - y
times
1.7
approx sums

4. Sin 30°
1/2
the last three numbers are divisible by 8
positive
expression of an odd number

5. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
inverse of a relation
right triangle
equal
quadratic equations

6. y years from now
+y
closed set
distributive axiom
x²-y²

7. ?
the sum of its digits is divisible by 9
xy-xz
and
22/7 or 3.14

8. In transversals
all acute angles are equal and all obtuse angles are equal
trapezoid
a<x<b
equal

9. Any integer is divisible by 4 - if
the last two digits of the number make a number that is divisible by 4
all acute angles are equal and all obtuse angles are equal
x-y
angle inscribed in semicircle

10. The whole equals
null set
reflex angle
the sum of parts
right triangle

11. Side a +side b of a ? is
one solution
polygon
greater than c
hexagon

12. What % of m is n
equal
the sum of its digits is divisible by 9
equilateral triangle
(x/100)m= n

13. 3(4+1)= 3 x 4 + 3 x 1
x<0
distributive axiom
inscribed angle
cylinder

14. 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
x is greater than y
properties of parallelograms
1
relation

15. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
y angle< x angle
trapezoid
permutations
area of a triangle

16. R²
right triangle
two solutions
all acute angles are equal and all obtuse angles are equal
diameter of circle

17. x less than y
y-x
closed set
a?n
inverse of a relation

18. C²= a²+b² and angle x and y are equal to 90°
semicircle
odd
right triangle
x>y and w>z

19. 180°
domain of a relation
y-x
distributive axiom
triangle or straight line

20. M= y2-y1/x2-x1
expression of an odd number
altitude of a triangle
slope of a line joining two points
implies

21. When two parallel lines are crossed by a third straight line (transversal) - then
circle
diagonal of a square
all acute angles are equal and all obtuse angles are equal
permutations

22. 1-v3- 2 (90-30-60)
similar triangles
quadratic equations
right triangle
chord

23. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
n percent less than x
3.16
diameter of circle
find the intersection of two sets

24. Angles directly across each other are equal
1.7
approx square roots
vertical angles
odd

25. Area= 1/2bh perimeter= a+b+c
x²-y²
triangle
radius of a circle
always positive or zero

26. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
right triangle
similar triangles
n percent less than x
approx sums

27. ? if a side < b side - then
equal
y angle< x angle
the last three numbers are divisible by 8
average

28. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
xy
w<0 and x>y
even
inconsistent lines

29. If b²-4ac > 0 there are
xy< 0
right triangle
simultaneous equations in 2 unknowns
two solutions

30. 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
x²-2xy+y²
commutative axiom of addition and multiplication
approx products
null set

31. If an equation can be put into the form y= mx +b - then
pythagorean theorem
b is the y-intercept
inscribed angle
x - y

32. 1/x + 1/y x -y ? 0
times
any variable
triangle
x+y/xy

33. 8-15-17
n percent greater than x
v(x2-x1)²+ (y2-y1)²
domain of a relation
right triangle

34. x>z
right triangle
x>y and y>z
x>y>0 and w>z>0
parallelogram

35. xn<0 if n is odd and xn>0 if n is even
simultaneous equations in 2 unknowns
x<0
null set
probability

36. Sum of an odd and an even number is
midpoint of a line segment joining 2 parts
diameter
odd
right triangle

37. ?
perpendicular
±vx
approx products
0 - 2 - 4 - 6 - 8

38. (x+y)(x+y)= (x+y)²
supplementary angles
isosceles triangle
+y
x²+ 2xy+y²

39. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
chord
right triangle
vertical angles
polygon

40. Product of two odd numbers is
area of a triangle
odd
triangle
expression of an odd number

41. 90°
medians of a triangle
x-y/xy
right angle
equal

42. A<x and x<b
a<x<b
relation
x - y
1.7

43. x/100
find the intersection of two sets
+y
regular polygon properties
x%

44. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
sphere
xy< 0
midpoint of a line segment joining 2 parts
quadratic equations

45. The point where the line crosses the y-axis - x will always = 0 in this case
opposite the greatest side
right triangle
it is also divisible by 2 and 3
y intercept

46. Then their intersection is the null or empty set - written as Ø
rectangle
1
the last digit is 0
if two sets have no elements in common

47. Is the set of the second components of the ordered pairs
commutative axiom of addition and multiplication
(x/100)m= n
angle a and angle b = angle d
range of a relation

48. z>y
reflex angle
x<0 and z=x+y
x and y
y angle< x angle

49. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
1
v(x2-x1)²+ (y2-y1)²
x percent
area of a triangle

50. 1/y-1/x x -y ? 0
x-y/xy
coinciding lines
even
angle