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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. 5/8 in percent?






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






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






4. Evaluate 4/11 + 11/12






5. What is a minor arc?

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6. What is a set with no members called?






7. 413.03 x 10^(-4) =






8. Which quandrant is the lower right hand?






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






10. What is the absolute value function?






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






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






13. Factor a^2 + 2ab + b^2






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






15. Length of an arc of a circle?






16. What is the empty set?






17. What is the order of operations?






18. Order of quadrants:






19. How to find the area of a sector?






20. 60 < all primes <70






21. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






22. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






23. a^2 - 2ab + b^2






24. Volume for a cylinder?






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






26. In a triangle inscribed inside a circle - where the diameter is one side of the triangle - which angle is largest?






27. How many 3-digit positive integers are even and do not contain the digit 4?






28. (-1)^3 =






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






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






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






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






33. Is 0 even or odd?






34. Can the output value of a function have more than one input value?






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






36. 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?






37. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?






38. To convert a percent to a fraction....






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






40. 30< all primes<40






41. 5x^2 - 35x -55 = 0






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






43. Legs: 3 - 4. Hypotenuse?






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






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






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






47. Whats the difference between factors and multiples?






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






49. Legs 6 - 8. Hypotenuse?






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