Test your basic knowledge |

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. (x-y)(x-y) = (x-y)²
tangent
if the last digit of the number is 0 -2 -4 -6 -8
x²-2xy+y²
always positive or zero

2. Volume= e(edge)³ surface area= 6e²
cube
properties of parallelograms
x + y
one solution

3. A chord through the center of the circle
all acute angles are equal and all obtuse angles are equal
right triangle
diameter
a?n

4. Angles directly across each other are equal
when finding a solution set
x + y
obtuse angle
vertical angles

5. Product of an even number and any other number is
if two sets have no elements in common
x is greater than y
even
x intercept

6. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
the square of x
x and y
v(x2-x1)²+ (y2-y1)²
hexagon

7. ?
average
angle
equal
permutations

8. 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}
obtuse angle
diagonal of a square
when finding a solution set
the sum of parts

9. x - (n/100)x
cylinder
angle bisector
x is greater than y
n percent less than x

10. If b²-4ac < 0 - there are
null set
vertical angles
right triangle
no solutions

11. 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)
cube
x%
probability
perpendicular

12. 1/2d
rectangular solid
radius of a circle
equal
average

13. Is a rectangular rhombus 1. all four sides are equal 2. opposite pairs of sides are parallel 3. diagonals are equal - are perpendicular to each other - and bisect each other. 4. all the angles are right triangles 5. diagonals intersect the vertices a
y angle< x angle
vertical angles
properties of a square
the perpendicular distance

14. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
±vx
midpoint of a line segment joining 2 parts
inverse of a relation
x is greater than y

15. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
it is also divisible by 2 and 3
the percent of increase
find the intersection of two sets
vertical angles

16. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
equilateral triangle
y intercept
polygon
approx square roots

17. If two lines are parallel - the slope of one is
diagonal of a square
equal to the slope of the other
right triangle
the last digit is either 0 or 5

18. What % of m is n
right angle
inverse of a relation
angle bisector
(x/100)m= n

19. Area= 1/2bh perimeter= a+b+c
1.4
a side< b side
triangle
or

20. 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.
similar triangles
perpendicular bisectors
a<x<b
x%

21. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
approx square roots
a
c x (john'S age)
Axioms

22. Side a +side b of a ? is
x<0
then side b > side a
greater than c
cube

23. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
rectangle
isosceles triangle
c x (john'S age)
equilateral triangle

24. 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.
0 - 2 - 4 - 6 - 8
and
supplementary angles
medians of a triangle

25. 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 -
associative axiom of addition and multiplication
determining if a number is prime
diagonal of a square
x<0

26. y years ago
-y
simultaneous equations in 2 unknowns
angle
positive

27. All three sides and all three angles are equal
properties of a square
two solutions
b is the y-intercept
equilateral triangle

28. Sum of two odd numbers is
x + y
even
angle bisector
determining if a number is prime

29. 5+3= 3+5 and 5 x 3= 3 x 5
chord
x>y
commutative axiom of addition and multiplication
any variable

30. All odd numbers end in the digits of
straight angle
the last three numbers are divisible by 8
1 - 3 - 5 - 7 - 9
never divide by zero

31. Sin 30°
average
22/7 or 3.14
1/2
midpoint of a line segment joining 2 parts

32. B>c+ d>e
xy>0
b+d>c+e
simultaneous equations in 2 unknowns
equal angles

33. Diagonals are perpendicular to each other and bisect the vertex angles 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 diagonal
0 - 2 - 4 - 6 - 8
perpendicular
properties of a rhombus
parallelogram

34. The sum of any two sides of a triangle is greater than
xy-xz
the third side
x+y/xy
a set

35. Is the relation with ALL ordered pairs REVERSED.
x<0
v3/2 or .87
inverse of a relation
times

36. If an equation can be put into the form y= mx +b - then
never divide by zero
diagonal of a square
b is the y-intercept
the last digit is 0

37. Sum of an odd and an even number is
properties of parallelograms
odd
when finding a solution set
one solution

38. V2
angle a and angle b = angle d
w<0 and x>y
1.4
right triangle

39. x less than y
y-x
x + y
right triangle
odd

40. Any integer is divisible by 5 if
odd
probability
the last digit is either 0 or 5
y angle< x angle

41. V3
1.7
acute angle
midpoint of a line segment joining 2 parts
x - y

42. x more than y
positive
x + y
the last digit is 0
simultaneous equations

43. Wx>wy
radius of a circle
even
b+d>c+e
w>0 and x>y

44. A¹
supplementary angles
xy-xz
x>y
a

45. 1/x + 1/y x -y ? 0
expression of an even number
inconsistent lines
x - y
x+y/xy

46. Is the set of the second components of the ordered pairs
range of a relation
always positive or zero
x percent
the perpendicular distance

47. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
properties of parallelograms
a+b+d=c+d
is a subset of
combinations

48. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
right triangle
associative axiom of addition and multiplication
negative reciprocal of the other
perpendicular

49. x younger than y
x - y
isosceles triangle
similar triangles
times

50. 1/an
c x (john'S age)
a?n
x intercept
1