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






2. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.






3. Then their intersection is the null or empty set - written as Ø






4. Is always a right angle.






5. 3-4-5






6. 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)






7. x less than y






8. The increase from x to y






9. 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.






10. If b²-4ac > 0 there are






11. 180°






12. A°






13. Less than 90°






14. Angles directly across each other are equal






15. 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






16. 9-40-41






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






18. The percent decrease from x to y ( y<x)






19. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.






20. Sin 30°






21. 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






22. 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.






23. 8-15-17






24. ?






25. Any integer is divisible by 4 - if






26. xw> yz






27. A chord through the center of the circle






28. 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






29. A<x and x<b






30. 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.






31. 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






32. /100 (the ______ number over 100)






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






34. 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






35. B²-4ac = 0 there is






36. Is - as - was - has - cost






37. 1-1-v2 (90-45-45)






38. Side a +side b of a ? is






39. 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






40. y<x






41. In a triangle - the greatest angles lies






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






43. z>y






44. y years ago






45. x older than y






46. A/A¹ = B/B¹= C/C¹






47. The decrease from x to y






48. If y²= x - then y =






49. C times as old as john

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






Can you answer 50 questions in 15 minutes?



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