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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. How to determine percent increase?






2. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






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






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






5. 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?






6. 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?






7. What is the measure of an exterior angle of a regular pentagon?






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






9. (-1)^3 =






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






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






12. 3/8 in percent?






13. If 10800 is invested at a simple interest rate of 4% - what is the value of the investment after 18 months?






14. What is an exterior angle?






15. What number between 70 & 75 - inclusive - has the greatest number of factors?






16. 5/6 in percent?






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






18. 60 < all primes <70






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






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






21. A number is divisible by 6 if...






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






23. 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.






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






25. Which quadrant is the lower left hand?






26. 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?






27. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






28. 7/8 in percent?






29. How to find the area of a sector?






30. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






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






32. a^2 - b^2 =






33. 10^6 has how many zeroes?






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






35. Length of an arc of a circle?






36. Which quandrant is the lower right hand?






37. Legs 5 - 12. Hypotenuse?






38. 5x^2 - 35x -55 = 0






39. Which quadrant is the upper right hand?






40. Volume for a cylinder?






41. 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)?






42. What does the graph (x+2)^2 + (y+2)^2 = 9 look like?






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






44. 40 < all primes<50






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






46. Is 0 even or odd?






47. How many 3-digit positive integers are even and do not contain the digit 4?






48. Write 10 -843 X 10^7 in scientific notation






49. 5/8 in percent?






50. Evaluate (4^3)^2