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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 is the percent formula?






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






3. Can you subtract 3sqrt4 from sqrt4?






4. 40 < all primes<50






5. Factor x^2 - xy + x.






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






7. Which quandrant is the lower right hand?






8. 0^0






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






10. 413.03 x 10^(-4) =






11. 4.809 X 10^7 =






12. What is a set with no members called?






13. Solve the quadratic equation ax^2 + bx + c= 0






14. A cylinder has surface area 22pi. If the cylinder has a height of 10 - what is its radius?






15. To convert a decimal to a percent...






16. Which quadrant is the upper right hand?






17. What is the ratio of the sides of a 30-60-90 triangle?






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






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






20. (12sqrt15) / (2sqrt5) =






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






22. 1/6 in percent?






23. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?






24. 20<all primes<30






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






26. What is a tangent?






27. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






28. 3/8 in percent?






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






30. 5x^2 - 35x -55 = 0






31. If 8 schools are in a conference - how many games are played if each team plays each other exactly once?






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






33. Describe the relationship between 3x^2 and 3(x - 1)^2






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






35. 8.84 / 5.2






36. What is an exterior angle?






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






39. What is a subset?






40. Convert 0.7% to a fraction.






41. Order of quadrants:






42. What is the ratio of the sides of an isosceles right triangle?






43. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






44. What is the absolute value function?






45. What are the real numbers?






46. What is a parabola?






47. (-1)^3 =






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






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






50. Length of an arc of a circle?