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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. Factor x^2 - xy + x.






2. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






3. Suppose that the graph of f(x) is the result of sliding the graph of y=2x^2 down 3 units of spaces. What is the new equation?






4. Which is greater? 200x^295 or 10x^294?






5. Describe the relationship between the graphs of x^2 and (1/2)x^2






6. To convert a percent to a fraction....






7. Which quadrant is the lower left hand?






8. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






9. 1/8 in percent?






10. Legs 5 - 12. Hypotenuse?






11. What is the 'union' of A and B?






12. a^2 + 2ab + b^2






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






14. sqrt 2(sqrt 6)=






15. (a^-1)/a^5






16. When the 'a' in a parabola is positive....






17. 0^0






18. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?






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






20. What is an exterior angle?






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






22. 1/6 in percent?






23. Can the input value of a function have more than one output value (i.e. x: y - y1)?






24. x^4 + x^7 =






25. If 4500 is invested at a simple interest rate of 6% - what is the value of the investment after 10 months?






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






27. Circumference of a circle?






28. x^(-y)=






29. What is the 'Range' of a series of numbers?






30. 6w^2 - w - 15 = 0






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






32. 70 < all primes< 80






33. Simplify (a^2 + b)^2 - (a^2 - b)^2






34. Formula to find a circle'S circumference from its diameter?






35. Which quadrant is the upper right hand?






36. What is a central angle?






37. What is a finite set?






38. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?






39. What is an arc of a circle?






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






41. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






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






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






44. Can the output value of a function have more than one input value?






45. What are the smallest three prime numbers greater than 65?






46. Is 0 even or odd?






47. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






48. What is the 'Solution' for a set of inequalities.






49. 1/2 divided by 3/7 is the same as






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