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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 'Range' of a series of numbers?






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






3. Legs 6 - 8. Hypotenuse?






4. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






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






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






7. Can the input value of a function have more than one output value (i.e. x: y - y1)?






8. Which quadrant is the upper left hand?






9. Legs: 3 - 4. Hypotenuse?






10. 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?






11. 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?






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






13. Can you add sqrt 3 and sqrt 5?






14. What is a subset?






15. 1/6 in percent?






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






17. What are congruent triangles?






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






19. What is an exterior angle?






20. 10^6 has how many zeroes?






21. What is an isoceles triangle?






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






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






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






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






26. What does scientific notation mean?






27. Evaluate (4^3)^2






28. The larger the absolute value of the slope...






29. What is the maximum value for the function g(x) = (-2x^2) -1?






30. Reduce: 4.8 : 0.8 : 1.6






31. What is a central angle?






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






33. What is the set of elements which can be found in either A or B?






34. Evaluate 3& 2/7 / 1/3






35. What is a piecewise equation?






36. Is 0 even or odd?






37. What are the rational numbers?






38. 7/8 in percent?






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






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






41. What is the formula for compounded interest?






42. 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?






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






44. x^(-y)=






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






46. What is a set with no members called?






47. a^2 - b^2






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






49. Factor x^2 - xy + x.






50. 1/2 divided by 3/7 is the same as







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