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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. If 4500 is invested at a simple interest rate of 6% - what is the value of the investment after 10 months?






2. Surface area for a cylinder?






3. Order of quadrants:






4. 5x^2 - 35x -55 = 0






5. What is the 'Range' of a function?






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






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






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






9. Circumference of a circle?






10. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)






11. 20<all primes<30






12. 8.84 / 5.2






13. 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)]?






14. Define a 'monomial'






15. What is a major arc?

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16. What is a tangent?






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






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






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






20. 3/8 in percent?






21. x^(-y)=






22. What is the slope of a vertical line?

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23. Area of a triangle?






24. What is an isoceles triangle?






25. What is the absolute value function?






26. Formula of rectangle where l increases by 20% and w decreases by 20%






27. 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?






28. 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)?






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






30. How to find the area of a sector?






31. If a=-1 and b=3 - what is the value of (4(a^3)(b^2) - 12(a^2)(b^5)) / (16(a^3)(b^2))?






32. Which is greater? 27^(-4) or 9^(-8)






33. How to determine percent decrease?






34. Can you subtract 3sqrt4 from sqrt4?






35. 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?






36. Whats the difference between factors and multiples?






37. Simplify (a^2 + b)^2 - (a^2 - b)^2






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






39. 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)






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






41. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






42. a^2 + 2ab + b^2






43. What is an exterior angle?






44. a^2 - b^2






45. a^0 =






46. If Madagascar'S exports totaled 1.3 billion in 2009 - and 4% came from China - what was the value in millions of the country'S exports to China?






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






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






49. 25^(1/2) or sqrt. 25 =






50. What are the integers?