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






2. Which quadrant is the upper left hand?






3. What is it called when a point is reflected to the quadrant opposite it (i.e. I to III or II to IV)?






4. x^4 + x^7 =






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






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






7. 1/8 in percent?






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






9. a^0 =






10. 4.809 X 10^7 =






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






12. What is the order of operations?






13. Can you add sqrt 3 and sqrt 5?






14. 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)]?






15. What is a chord of a circle?






16. Which is greater? 200x^295 or 10x^294?






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






18. 2sqrt4 + sqrt4 =






19. Find the surface area of a cylinder with radius 3 and height 12.






20. What are the irrational numbers?

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21. The ratio of the areas of two similar polygons is ...






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






23. What is a subset?






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






25. Suppose you have a set of n objects - and you want to select k of them - but the order doesn'T matter. What formula do you use to determine the number of combinations of n objects taken k at a time?






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






27. (a^-1)/a^5






28. What is the slope of a vertical line?

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






30. 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?






31. What is a central angle?






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






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






34. x^2 = 9. What is the value of x?






35. Which quadrant is the lower left hand?






36. Convert 0.7% to a fraction.






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






38. What are congruent triangles?






39. 50 < all primes< 60






40. How many sides does a hexagon have?






41. What is an arc of a circle?






42. What is an isoceles triangle?






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






44. x^6 / x^3






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






46. What is the formula for computing simple interest?






47. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?






48. Define a 'Term' -






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






50. Evaluate 4/11 + 11/12