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GRE Math: Common Errors

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. What is the measure of an exterior angle of a regular pentagon?






2. What are 'Supplementary angles?'






3. What is the graph of f(x) shifted right c units or spaces?






4. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






5. What is a set with no members called?






6. Formula for the area of a circle?






7. How to find the circumference of a circle which circumscribes a square?






8. What is it called when a point is reflected to the quadrant opposite it (i.e. I to III or II to IV)?






9. What are the irrational numbers?

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10. Surface area for a cylinder?






11. x^6 / x^3






12. Write 10 -843 X 10^7 in scientific notation






13. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






14. How to determine percent decrease?






15. a^2 + 2ab + b^2






16. If 8 schools are in a conference - how many games are played if each team plays each other exactly once?






17. What is a tangent?






18. What is the set of elements found in both A and B?






19. What is the ratio of the sides of an isosceles right triangle?






20. A triangle is inscribed in a semi circle with legs 5 and 12. What is the circumfermence of the semicircle?






21. What is the common monomial factor in the expression 4(c^3)d - (c^2)(d^2) + 2cd?






22. How to find the diagonal of a rectangular solid?






23. What is an arc of a circle?






24. How many 3-digit positive integers are even and do not contain the digit 4?






25. What is the coefficient of the x^2 term in the product of (x + 1)(x + 2)(x -1)?






26. sqrt 2(sqrt 6)=






27. 1/2 divided by 3/7 is the same as






28. (12sqrt15) / (2sqrt5) =






29. Suppose that the graph of f(x) is the result of stretching y=x + 5 away from the x-axis by a factor of 2. What is the new equation for the graph f(x)?






30. What is the 'Restricted domain of a function'?






31. Describe the relationship between 3x^2 and 3(x - 1)^2






32. What is the 'Range' of a function?






33. (-1)^3 =






34. The perimeter of a square is 48 inches. The length of its diagonal is:






35. The ratio of the areas of two similar polygons is ...






36. What are the members or elements of a set?






37. (-1)^2 =






38. x^(-y)=






39. 60 < all primes <70






40. Which is greater? 64^5 or 16^8






41. A number is divisible by 3 if ...






42. What is a central angle?






43. What transformation occurs if point C is reflected over the x-axis and then the y-axis?






44. What is the absolute value function?






45. How to determine percent increase?






46. Nine coins are tossed simultaneously. In how many of the outcomes will the fourth coin tossed show heads?






47. To multiply a number by 10^x






48. Formula for the area of a sector of a circle?






49. Number of degrees in a triangle






50. What is the percent formula?