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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. What is the 'domain' of a function?






2. What is the intersection of A and B?






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






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






5. 25^(1/2) or sqrt. 25 =






6. How many multiples does a given number have?






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






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






9. What is a subset?






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






11. Pi is a ratio of what to what?

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






13. 0^0






14. 1/8 in percent?






15. Can you subtract 3sqrt4 from sqrt4?






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






17. Convert 0.7% to a fraction.






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






19. 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))?






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






21. When the 'a' in the parabola is negative...






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






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






24. 40 < all primes<50






25. How to determine percent decrease?






26. 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?






27. 2sqrt4 + sqrt4 =






28. What is the area of a regular hexagon with side 6?






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






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






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






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






33. 7/8 in percent?






34. What is the slope of a horizontal line?






35. 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)?






36. What number between 70 & 75 - inclusive - has the greatest number of factors?






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






38. Formula to calculate arc length?






39. What is the empty set?






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






41. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






42. 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?






43. 6w^2 - w - 15 = 0






44. What is a tangent?






45. What is a piecewise equation?






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






47. a^0 =






48. 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?






49. 5x^2 - 35x -55 = 0






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






Can you answer 50 questions in 15 minutes?



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