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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. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
right triangle
parallel
equal angles
midpoint of a line segment joining 2 parts

2. Side a +side b of a ? is
x percent
equal angles
circle
greater than c

3. 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}
+y
y angle< x angle
when finding a solution set
(x/100)m= n

4. Is the set of the first components of the ordered pairs.
coinciding lines
x²-2xy+y²
domain of a relation
x + y

5. x+w> y+z
then side b > side a
diameter of circle
coinciding lines
x>y and w>z

6. V3
equilateral triangle
xy + xz
1.7
right triangle

7. The distance between two parallel lines or from a point to a line always means
the percent of increase
xy>0
average
the perpendicular distance

8. If ?B > ?A - then
Axioms
altitude of a triangle
right triangle
then side b > side a

9. Any integer is divisible by 3 - if
similar triangles
null set
x<0
the sum of its digits is divisible by 3

10. Volume= 4/3?r² surface area= 4?r²
diameter of circle
the sum of parts
xy< 0
sphere

11. (amount of increase/original amount) x 100
properties of a rhombus
x-y/xy
never divide by zero
the percent of increase

12. When two parallel lines are crossed by a third straight line (transversal) - then
right triangle
all acute angles are equal and all obtuse angles are equal
right triangle
-y

13. (x-y)(x-y) = (x-y)²
even
implies
180 degrees
x²-2xy+y²

14. 90°
a+b+d=c+d
parallelogram
triangle
right angle

15. N is what % of m
approx products
two solutions
n= mx/100
parallel

16. M= y2-y1/x2-x1
slope of a line joining two points
belongs to
times
equilateral triangle

17. The percent decrease from x to y ( y<x)
if the last digit of the number is 0 -2 -4 -6 -8
medians of a triangle
(x-y/x)100
properties of a square

18. Is the set of the second components of the ordered pairs
x>y
triangle
equal to the sum of the measures of the remote exterior angles
range of a relation

19. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
equal angles
vertical angles
when finding a solution set
x<0

20. 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
vertical angles
right triangle
hemisphere
properties of a rectangle

21. A+b=c+ d=d
perpendicular bisectors
times
a+b+d=c+d
right triangle

22. ?
supplementary angles
angle a and angle b = angle d
or
approx square roots

23. x younger than y
y intercept
x - y
right triangle
simultaneous equations in 2 unknowns

24. y years ago
null set
-y
b is the y-intercept
range of a relation

25. ?if y angle< x angle - then
average
a side< b side
tangent
x<0 and z=x+y

26. C²= a²+b² and angle x and y are equal to 90°
right triangle
+y
b is the y-intercept
similar triangles

27. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
solution set
the percent of decrease
reflex angle
cylinder

28. Wx>wy
w>0 and x>y
x + y
angle
n percent less than x

29. 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.
simultaneous equations in 2 unknowns
equal
never divide by zero
medians of a triangle

30. The percent increase from x to y (y>x)
hemisphere
(y-x/x)100
positive
a?n

31. Diagonal= sv2
diagonal of a square
solution set
expression of an even number
x + y

32. C times as old as john

33. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
the last three numbers are divisible by 8
v(x2-x1)²+ (y2-y1)²
average
y angle< x angle

34. 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
no solutions
b+d>c+e
right triangle

35. Area= bh perimeter= 2a +2b
similar triangles
all acute angles are equal and all obtuse angles are equal
domain of a relation
parallelogram

36. A<x and x<b
y-x
a<x<b
consistent lines
radius of a circle

37. 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
the percent of increase
angle inscribed in semicircle
approx square roots

38. Any integer is divisible by 8 if
180 degrees
the last three numbers are divisible by 8
two solutions
x percent

39. x more than y
x + y
similar triangles
area of a triangle
permutations

40. Integer is divisible by 2
if the last digit of the number is 0 -2 -4 -6 -8
triangle or straight line
equilateral triangle
x - y

41. A°
1
v3/2 or .87
equilateral triangle
approx sums

42. Set of solutions to an equation
solution set
determining if a number is prime
always positive or zero
3.16

43. x>0 and y>0 or x<0 and y<0
xy>0
and
hexagon
hemisphere

44. The whole equals
right triangle
central angle
range of a relation
the sum of parts

45. Less than 90°
acute angle
b+d>c+e
circle
area of a triangle

46. Volume=lwh surface area= 2wh + 2hl + 2lw
greater than c
range of a relation
n percent less than x
rectangular solid

47. 9-40-41
the percent of decrease
right triangle
equilateral triangle
x²-2xy+y²

48. R²
diameter of circle
x - y
slope of a line joining two points
the perpendicular distance

49. x²
even
the square of x
x<0 and z=x+y
x>y

50. Angles directly across each other are equal
vertical angles
the last digit is 0
the percent of decrease
+y