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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. The sume of x and y






2. 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






3. Area = ?r² circumference(perimeter)= 2?r






4. The sum of the interior angles is






5. 360°






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






7. 1/2bh






8. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a






9. 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






10. Any number squared or raised to an even power is






11. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.






12. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)






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






14. 1-1-1 (60-60-60)






15. Is the relation with ALL ordered pairs REVERSED.






16. If ?B > ?A - then






17. Is a subset of every set






18. 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






19. C²= a²+b² and angle x and y are equal to 90°






20. The sum of any two sides of a triangle is greater than






21. x +z > y+z






22. (x+y)(x+y)= (x+y)²






23. ? if a side < b side - then






24. ?






25. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases






26. V2






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






28. Wx<wy






29. Side a +side b of a ? is






30. If y²= x - then y =






31. Every set is a subset of






32. 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






33. Sum of two even numbers is






34. x younger than y






35. x < y or y> x






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






37. What % of m is n






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






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






40. 9-40-41






41. 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






42. Any line that connects two points on a circle.






43. 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 -






44. V3






45. 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.






46. Two tangents to a circle from the same point outside of the circle are always






47. x>z






48. 1/y-1/x x -y ? 0






49. x(y-z)






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