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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. Convert 0.7% to a fraction.






2. Length of an arc of a circle?






3. What is a set with no members called?






4. How many sides does a hexagon have?






5. If the 80th percentile of the measurements is 72degrees - about how many measurments are between 69 degrees and 72 degrees? Round your answer to the nearest tenth






6. If r - t - s & u are distinct - consecutive prime numbers - less than 31 - which of the following could be an average of them (4 - 4.25 - 6 - 9 - 24 - 22 - 24)






7. Formula for the area of a sector of a circle?






8. (-1)^2 =






9. 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?






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






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






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






13. What are the smallest three prime numbers greater than 65?






14. Which quadrant is the upper left hand?






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






16. If an inequality is multiplied or divided by a negative number....






17. What is the formula for computing simple interest?






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






19. What are the irrational numbers?

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






21. 8.84 / 5.2






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






23. What is a central angle?






24. Define an 'expression'.






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






26. (6sqrt3) x (2sqrt5) =






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






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






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






30. To convert a decimal to a percent...






31. 1/6 in percent?






32. P and r are factors of 100. What is greater - pr or 100?






33. 20<all primes<30






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






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






36. What is the formula for compounded interest?






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






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






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






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






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






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






43. What is a minor arc?

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44. What is an arc of a circle?






45. 60 < all primes <70






46. Can the input value of a function have more than one output value (i.e. x: y - y1)?






47. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?






48. 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?






49. 10<all primes<20






50. 4.809 X 10^7 =