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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. Simplify the expression (p^2 - q^2)/ -5(q - p)






2. What are the irrational numbers?

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3. (-1)^2 =






4. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






5. The number of degrees in the largest angle of a triangle inscribed in a circle - in which the diameter of the circle is one side of the triangle.






6. To convert a decimal to a percent...






7. 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?






8. Length of an arc of a circle?






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






10. What is the slope of a horizontal line?






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






12. What is a chord of a circle?






13. What are the integers?






14. Order of quadrants:






15. Factor x^2 - xy + x.






16. 1/8 in percent?






17. Whats the difference between factors and multiples?






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






19. What is a tangent?






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






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






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






23. 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?






24. 20<all primes<30






25. x^4 + x^7 =






26. Define a 'monomial'






27. a^0 =






28. 10^6 has how many zeroes?






29. (6sqrt3) x (2sqrt5) =






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






31. (12sqrt15) / (2sqrt5) =






32. 4.809 X 10^7 =






33. Legs: 3 - 4. Hypotenuse?






34. Evaluate 4/11 + 11/12






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






36. 7/8 in percent?






37. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?






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






39. What are complementary angles?






40. Reduce: 4.8 : 0.8 : 1.6






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






42. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






43. (x^2)^4






44. 50 < all primes< 60






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






46. 1/2 divided by 3/7 is the same as






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






48. a^2 + 2ab + b^2






49. 25^(1/2) or sqrt. 25 =






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