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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. a^2 - b^2 =






2. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?






3. Formula to find a circle'S circumference from its diameter?






4. Formula for the area of a circle?






5. What is a parabola?






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






7. Number of degrees in a triangle






8. Whats the difference between factors and multiples?






9. 5/6 in percent?






10. 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?






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






12. What is an isoceles triangle?






13. 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.






14. Order of quadrants:






15. x^(-y)=






16. The objects in a set are called two names:






17. If the two sides of a triangle are unequal then the longer side...






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






19. What is a piecewise equation?






20. 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?






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






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






23. In a regular polygon with n sides - the formula for the sum of interior angles






24. Which quadrant is the lower left hand?






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






26. a^2 + 2ab + b^2






27. Hector invested $6000. Part was invested in account with 9% simple annual interest - and the rest in account with 7% simple annual interest. If he earned $490 in the first year of these investments - how much did he invest in each account?






28. 5/8 in percent?






29. What is a major arc?


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






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






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






33. 1/2 divided by 3/7 is the same as






34. A number is divisible by 3 if ...






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






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






37. The larger the absolute value of the slope...






38. a^0 =






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






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






41. 413.03 x 10^(-4) =






42. What is a finite set?






43. Convert 0.7% to a fraction.






44. What is the 'Solution' for a set of inequalities.






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






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






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






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






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






50. What are the integers?