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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. Length of an arc of a circle?






2. 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?






3. 50 < all primes< 60






4. What is the empty set?






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






6. 413.03 x 10^(-4) =






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






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






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






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






11. What are the rational numbers?






12. Pi is a ratio of what to what?

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13. What is the slope of a horizontal line?






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






15. a^2 + 2ab + b^2






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






17. Area of a triangle?






18. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






19. To convert a percent to a fraction....






20. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






21. 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?






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






23. Formula for the area of a circle?






24. Which quadrant is the upper left hand?






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






26. How many digits are there between the decimal point and the first even digit in the decimal equivalent of 1/[(2^8)(5^3)]






27. 7/8 in percent?






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






29. 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?






30. Reduce: 4.8 : 0.8 : 1.6






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






32. What is the name of set with a number of elements which cannot be counted?






33. 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?






34. How to determine percent decrease?






35. 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?






36. To multiply a number by 10^x






37. What is a major arc?

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38. 2sqrt4 + sqrt4 =






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






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






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






42. Which quandrant is the lower right hand?






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






44. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






45. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






46. If you have a set of n objects - but you only want to order k of them - what formula do you use to determine the number of permutations?






47. 8.84 / 5.2






48. What is the set of elements found in both A and B?






49. Number of degrees in a triangle






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