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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. a^0 =






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






3. Can you simplify sqrt72?






4. Reduce: 4.8 : 0.8 : 1.6






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






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






7. What is the percent formula?






8. Suppose that the graph of f(x) is the result of sliding the graph of y=2x^2 down 3 units of spaces. What is the new equation?






9. What does the graph (x+2)^2 + (y+2)^2 = 9 look like?






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






11. What is a piecewise equation?






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






13. 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)]?






14. To multiply a number by 10^x






15. What is an isoceles triangle?






16. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






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






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






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






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






21. 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?






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






23. 50 < all primes< 60






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






25. 4.809 X 10^7 =






26. 7/8 in percent?






27. What are the irrational numbers?

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






29. What are 'Supplementary angles?'






30. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?






31. How to find the area of a sector?






32. x^(-y)=






33. What is the order of operations?






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






35. What is the measure of an exterior angle of a regular pentagon?






36. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






37. If 4500 is invested at a simple interest rate of 6% - what is the value of the investment after 10 months?






38. What are the members or elements of a set?






39. A brick with dimensions 10. 15 and 25 weighs 1.5 kg. A second brick (same density) has dimensions 12 - 18 - and 30. What is the weight of the second brick?






40. What is a major arc?

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41. To convert a decimal to a percent...






42. What is a chord of a circle?






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






44. 10<all primes<20






45. 30< all primes<40






46. What are the integers?






47. Formula for the area of a circle?






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






49. How many sides does a hexagon have?






50. 70 < all primes< 80