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






2. Write 10 -843 X 10^7 in scientific notation






3. 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)?






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






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






6. (12sqrt15) / (2sqrt5) =






7. The slope of a line perpendicular to (a/b)?






8. 6w^2 - w - 15 = 0






9. Can you simplify sqrt72?






10. Which quadrant is the lower left hand?






11. What is the slope of a horizontal line?






12. What is an arc of a circle?






13. 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?






14. What is a parabola?






15. A number is divisible by 9 if...






16. 4.809 X 10^7 =






17. What is the order of operations?






18. What is a chord of a circle?






19. How many multiples does a given number have?






20. 30< all primes<40






21. Reduce: 4.8 : 0.8 : 1.6






22. What is the surface area of a cylinder with radius 5 and height 8?






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






24. 10^6 has how many zeroes?






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






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






27. What are the irrational numbers?

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28. 40 < all primes<50






29. How to find the area of a sector?






30. What is a major arc?

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31. How to determine percent decrease?






32. What is the intersection of A and B?






33. How to determine percent increase?






34. What are the integers?






35. What are the rational numbers?






36. Circumference of a circle?






37. a^0 =






38. 413.03 x 10^(-4) =






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






40. Which is greater? 64^5 or 16^8






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






42. 70 < all primes< 80






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






44. A number is divisible by 6 if...






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






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






47. What is a subset?






48. Formula for the area of a circle?






49. x^(-y)=






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