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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. Sum of two odd numbers is






2. 180°






3. x - (n/100)x






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






5. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.






6. | |






7. 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 -






8. (x-y)(x-y) = (x-y)²






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






10. x < y or y> x






11. The angles opposite to sides that are equal in length have






12. Less than 90°






13. B>c+ d>e






14. ? if a side < b side - then






15. 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






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






17. Any integer is divisible by 6 if






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






19. The decrease from x to y






20. The sum of the interior angles is






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






22. 1-v3- 2 (90-30-60)






23. Which - what






24. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B






25. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)






26. The product of x and y






27. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)






28. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc






29. The difference between x and y






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






31. 360°






32. 180°






33. 2k






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






35. Have two equal sides and two equal angles formed by the equal sides and the unequal side.






36. One angle is equal 90° and the other two angles are equal to the sum of 90°






37. 1-1-1 (60-60-60)






38. x older than y






39. ?






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






41. 8-15-17






42. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)






43. 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






44. Ax= by + C






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






46. xw> yz






47. 1/x + 1/y x -y ? 0






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






49. 2k + 1






50. Sin 30°