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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. When the elements of a set are ordered pairs
relation
1
approx sums
midpoint of a line segment joining 2 parts

2. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
set
right angle
x + y
a?n

3. x/100
x%
x - y
negative
y intercept

4. Is always a right angle.
sphere
supplementary angles
angle inscribed in semicircle
chord

5. All even numbers end in the digits of
w>0 and x>y
y-x
0 - 2 - 4 - 6 - 8
vertical angles

6. Area= l x w perimeter = (2l)(2w)
a?n
rectangle
properties of a rhombus
even

7. y years from now
+y
v(x2-x1)²+ (y2-y1)²
right triangle
right triangle

8. x - (n/100)x
n percent less than x
y-x
diameter of circle
central angle

9. Any integer is divisible by 4 - if
x is greater than y
the last two digits of the number make a number that is divisible by 4
semicircle
equilateral triangle

10. Angles directly across each other are equal
rectangle
vertical angles
x²-y²
rectangular solid

11. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
radius of a circle
right triangle
negative reciprocal of the other
v(x2-x1)²+ (y2-y1)²

12. Volume= 4/3?r² surface area= 4?r²
right angle
±vx
solution set
sphere

13. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
angle bisector
isosceles triangle
vertical angles
b+d>c+e

14. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
1 - 3 - 5 - 7 - 9
±vx
similar triangles
no solutions

15. 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
standard deviation
the sum of parts
the last two digits of the number make a number that is divisible by 4
+y

16. ?
xy< 0
perpendicular
if two sets have no elements in common
right angle

17. The distance from the center of the circle
1.4
coinciding lines
and
radius

18. x younger than y
-y
domain of a relation
equal to the slope of the other
x - y

19. Ax= by + C
right triangle
a
inconsistent lines
simultaneous equations in 2 unknowns

20. Integer is divisible by 2
x>y>0 and w>z>0
if the last digit of the number is 0 -2 -4 -6 -8
right triangle
straight angle

21. A+b=c+ d=d
equal angles
odd
x intercept
a+b+d=c+d

22. 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.
regular polygon properties
central angle
x<0
180 degrees

23. All three sides and all three angles are equal
x - y
equilateral triangle
the sum of its digits is divisible by 9
right triangle

24. M= y2-y1/x2-x1
angle
parallelogram
y-x
slope of a line joining two points

25. The product of an even number of negative numbers is
xy
positive
180 degrees
odd

26. ?
x + y
1.4
consistent lines
or

27. 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
radius
inverse of a relation
properties of parallelograms
equal

28. ? if a side < b side - then
vertical angles
if the last digit of the number is 0 -2 -4 -6 -8
angle a and angle b = angle d
y angle< x angle

29. Side a +side b of a ? is
properties of a square
perpendicular bisectors
greater than c
inconsistent lines

30. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
polygon
similar triangles
inconsistent lines
the sum of its digits is divisible by 9

31. ?
is a subset of
two solutions
if the last digit of the number is 0 -2 -4 -6 -8
cube

32. Every set is a subset of
itself
the last three numbers are divisible by 8
central angle
x-y/xy

33. 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
right triangle
y intercept
approx sums
equal to the slope of the other

34. B²-4ac = 0 there is
one solution
equals
equal
right triangle

35. ?
inverse of a relation
is a subset of
angle a and angle b = angle d
and

36. 1-1-v2 (90-45-45)
domain of a relation
1.4
all acute angles are equal and all obtuse angles are equal
right triangle

37. If two lines are parallel - the slope of one is
equal to the slope of the other
right triangle
equal
supplementary angles

38. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
quadratic equations
1.7
x>y
rectangle

39. (x+y)(x+y)= (x+y)²
radius of a circle
(x/100)m= n
x²+ 2xy+y²
associative axiom of addition and multiplication

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*)
right triangle
xy< 0
closed set
associative axiom of addition and multiplication

41. ?
v3/2 or .87
approx square roots
x²-y²
belongs to

42. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
angle a and angle b = angle d
xy
inscribed angle
1.7

43. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
area of a triangle
hemisphere
180 degrees
approx square roots

44. x²
slope of a line joining two points
belongs to
x>y and w>z
the square of x

45. Any integer is divisible by 9 - if
diagonal of a square
c x (john'S age)
relation
the sum of its digits is divisible by 9

46. Less than 90°
regular polygon properties
diagonal of a square
the perpendicular distance
acute angle

47. 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
coinciding lines
x + y
approx products
positive

48. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
approx sums
inscribed angle
the square of x
trapezoid

49. The percent decrease from x to y ( y<x)
similar triangles
isosceles triangle
±vx
(x-y/x)100

50. In a triangle - the greatest angles lies
opposite the greatest side
b+d>c+e
obtuse angle
itself