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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. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)






2. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication






3. If an equation can be put into the form y= mx +b - then






4. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other






5. 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.






6. ?






7. When the elements of a set are ordered pairs






8. 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






9. Area= 1/2bh perimeter= a+b+c






10. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d






11. Between 90° and 180°






12. 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)






13. The percent increase from x to y (y>x)






14. Every set is a subset of






15. 3-4-5






16. All odd numbers end in the digits of






17. z>y






18. The increase from x to y






19. Sin 30°






20. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints






21. x/100






22. x>z






23. If two lines are perpendicular - the slope of one is the






24. 8-15-17






25. x>0 and y<0 or x<0 and y >0






26. 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






27. B²-4ac = 0 there is






28. Volume= e(edge)³ surface area= 6e²






29. Any arc length is less than






30. 3(4+1)= 3 x 4 + 3 x 1






31. The distance from the center of the circle






32. Area= l x w perimeter = (2l)(2w)






33. 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)






34. 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






35. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)






36. Ax= by + C






37. If y²= x - then y =






38. 1/2bh






39. Product of an even number and any other number is






40. Any integer is divisible by 9 - if






41. ?






42. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f






43. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.






44. If the each element of the domain occurs only once as a FIRST component






45. Volume=lwh surface area= 2wh + 2hl + 2lw






46. y years from now






47. Angles directly across each other are equal






48. ?






49. Is the set of the second components of the ordered pairs






50. 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.