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






2. What is a major arc?


3. What are the irrational numbers?


4. (-1)^3 =






5. How many sides does a hexagon have?






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






7. For similar triangles - the ratio of their corresponding sides is 2:3. What is the ratio of their areas?






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






9. 5/6 in percent?






10. To multiply a number by 10^x






11. 5/8 in percent?






12. (6sqrt3) x (2sqrt5) =






13. What are the rational numbers?






14. When does a function automatically have a restricted domain (2)?






15. 2sqrt4 + sqrt4 =






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






17. What is the surface area of a cylinder with radius 5 and height 8?






18. What is a set with no members called?






19. 70 < all primes< 80






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






21. (-1)^2 =






22. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






23. a^0 =






24. What is a parabola?






25. When the 'a' in the parabola is negative...






26. Which quadrant is the upper left hand?






27. 3/8 in percent?






28. Evaluate 4/11 + 11/12






29. What is a subset?






30. What is the name for a grouping of the members within a set based on a shared characteristic?






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






32. 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)]?






33. In similar hexagons - the ratio of the areas is 16:25. What is the ratio of their corresponding sides?






34. 10<all primes<20






35. In a triangle inscribed inside a circle - where the diameter is one side of the triangle - which angle is largest?






36. What is the name of set with a number of elements which cannot be counted?






37. Whats the difference between factors and multiples?






38. Find the surface area of a cylinder with radius 3 and height 12.






39. How to determine percent decrease?






40. 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?






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






42. What is the set of elements which can be found in either A or B?






43. Area of a triangle?






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






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






46. If an inequality is multiplied or divided by a negative number....






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






48. 50 < all primes< 60






49. 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?






50. Legs: 3 - 4. Hypotenuse?