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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. 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






2. Product of two odd numbers is






3. x more than y






4. 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.






5. Sin 45°






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






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






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






9. When two parallel lines are crossed by a third straight line (transversal) - then






10. 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*)






11. A chord through the center of the circle






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






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






14. Any integer is divisible by 10 - if






15. xn<0 if n is odd and xn>0 if n is even






16. 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 -






17. (amount of increase/original amount) x 100






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






19. (x+y)(x+y)= (x+y)²






20. Any integer is divisible by 9 - if






21. 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}






22. xw> yz






23. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)






24. A+b=c+ d=d






25. Any integer is divisible by 4 - if






26. V10






27. 2k






28. A°






29. Any integer is divisible by 8 if






30. 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






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






32. Of






33. If b²-4ac < 0 - there are






34. Wx>wy






35. 1/an






36. 5+3= 3+5 and 5 x 3= 3 x 5






37. M= y2-y1/x2-x1






38. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3






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






40. Any integer is divisible by 5 if






41. y years ago






42. Area= s² perimeter= 4s






43. 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






44. B>c+ d>e






45. x younger than y






46. x - (n/100)x






47. 1/2bh






48. 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.






49. The sume of x and y






50. (x+y) (x-y)