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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 are the irrational numbers?


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






3. A number is divisible by 9 if...






4. Legs 5 - 12. Hypotenuse?






5. What is the slope of a horizontal line?






6. What are the rational numbers?






7. Formula of rectangle where l increases by 20% and w decreases by 20%






8. What is a parabola?






9. x^6 / x^3






10. What is the area of a regular hexagon with side 6?






11. What is the 'Solution' for a system of linear equations?






12. What are 'Supplementary angles?'






13. Evaluate 3& 2/7 / 1/3






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






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






16. 5/6 in percent?






17. 20<all primes<30






18. sqrt 2(sqrt 6)=






19. 40 < all primes<50






20. What are the real numbers?






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






22. What is the absolute value function?






23. 1/8 in percent?






24. What are complementary angles?






25. Order of quadrants:






26. Pi is a ratio of what to what?


27. What is the side length of an equilateral triangle with altitude 6?






28. Which quadrant is the lower left hand?






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






30. What percent of 40 is 22?






31. How to find the area of a sector?






32. Factor x^2 - xy + x.






33. How many sides does a hexagon have?






34. 5/8 in percent?






35. What is the sum of the angles of a triangle?






36. The larger the absolute value of the slope...






37. What is the 'domain' of a function?






38. 6w^2 - w - 15 = 0






39. A number is divisible by 4 is...






40. What is the maximum value for the function g(x) = (-2x^2) -1?






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






42. What is the percent formula?






43. What is the order of operations?






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






45. How to determine percent increase?






46. (-1)^2 =






47. 10^6 has how many zeroes?






48. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?






49. Which quadrant is the upper right hand?






50. 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?