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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. Number of degrees in a triangle






2. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






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






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






5. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)






6. (-1)^3 =






7. What is the intersection of A and B?






8. How many sides does a hexagon have?






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






10. Length of an arc of a circle?






11. x^(-y)=






12. How many digits are there between the decimal point and the first even digit in the decimal equivalent of 1/[(2^8)(5^3)]






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






14. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?






15. 2sqrt4 + sqrt4 =






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






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






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






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






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






21. What percent of 40 is 22?






22. 10^6 has how many zeroes?






23. What is a parabola?






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






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






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






27. What is the 'domain' of a function?






28. 5/8 in percent?






29. The objects in a set are called two names:






30. For similar triangles - the ratio of their corresponding sides is 2:3. What is the ratio of their areas?






31. Legs 6 - 8. Hypotenuse?






32. 5/6 in percent?






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






34. 413.03 x 10^(-4) =






35. What are complementary angles?






36. What are the rational numbers?






37. 8.84 / 5.2






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






39. What transformation occurs if point C is reflected over the x-axis and then the y-axis?






40. What are the irrational numbers?

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41. What is an arc of a circle?






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






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






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






45. Which quandrant is the lower right hand?






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






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






48. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?






49. Which quadrant is the upper right hand?






50. 20<all primes<30