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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. (amount of decrease/original amount) x 100






2. B²-4ac = 0 there is






3. x(y+z)






4. 1/x + 1/y x -y ? 0






5. 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)






6. (x+y)(x+y)= (x+y)²






7. x+w> y+z






8. M= y2-y1/x2-x1






9. The product of an even number of negative numbers is






10. 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}






11. Volume= 4/3?r² surface area= 4?r²






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






13. Wx<wy






14. (sum of individual quantities or measures/ total number of quantities or measures)






15. x younger than y






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






17. Is - as - was - has - cost






18. 7-24-25






19. If ?B > ?A - then






20. Intersect at only one point - the point is the only solution to the pair of equations






21. Any integer is divisible by 10 - if






22. x/100






23. In a triangle - the greatest angles lies






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






25. 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






26. V3






27. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)






28. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²






29. Between 180° and 360°






30. Product of two odd numbers is






31. Sin 45°






32. Ax= by + C






33. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)






34. The point where the line crosses the x-axis - y will always = 0 in this case






35. 180°






36. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²






37. 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






38. Sin 60°






39. The quotient of any quantity (except 0) divided by zero is infinity






40. x less than y






41. Of






42. 5-12-13






43. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB






44. ? if a side < b side - then






45. ?






46. 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)






47. x < y or y> x






48. Is always a right angle.






49. (x-y)(x-y) = (x-y)²






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