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






2. What is a minor arc?


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






4. Simplify the expression [(b^2 - c^2) / (b - c)]






5. 1/8 in percent?






6. 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)?






7. Circumference of a circle?






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






9. 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?






10. Whats the difference between factors and multiples?






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






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






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






14. What does scientific notation mean?






15. What is an arc of a circle?






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






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






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






19. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)






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






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






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






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






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






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






26. 10^6 has how many zeroes?






27. 0^0






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






29. Formula for the area of a circle?






30. What are the rational numbers?






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






32. What are the roots of the quadrinomial x^2 + 2x + 1?






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






34. 413.03 x 10^(-4) =






35. How many sides does a hexagon have?






36. Formula to find a circle'S circumference from its radius?






37. 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?






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






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






40. Define a 'monomial'






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






42. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






43. 4.809 X 10^7 =






44. 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?






45. What does the graph x^2 + y^2 = 64 look like?






46. Number of degrees in a triangle






47. Max and Min lengths for a side of a triangle?






48. Pi is a ratio of what to what?


49. a^2 + 2ab + b^2






50. The slope of a line perpendicular to (a/b)?