Test your basic knowledge |

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






2. 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?






3. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






4. What is a central angle?






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






6. Area of a triangle?






7. 10^6 has how many zeroes?






8. 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?






9. Evaluate 4/11 + 11/12






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






11. 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?






12. To multiply a number by 10^x






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






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






15. 5x^2 - 35x -55 = 0






16. If the 80th percentile of the measurements is 72degrees - about how many measurments are between 69 degrees and 72 degrees? Round your answer to the nearest tenth






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






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






19. What is a piecewise equation?






20. Which quadrant is the upper left hand?






21. a^0 =






22. Define a 'Term' -






23. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






24. Convert 0.7% to a fraction.






25. x^2 = 9. What is the value of x?






26. What is the common monomial factor in the expression 4(c^3)d - (c^2)(d^2) + 2cd?






27. Define a 'monomial'






28. Is 0 even or odd?






29. What is the set of elements found in both A and B?






30. Factor x^2 - xy + x.






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






32. How to find the area of a sector?






33. 413.03 x 10^(-4) =






34. To convert a percent to a fraction....






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






36. 40 < all primes<50






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






38. Simplify the expression [(b^2 - c^2) / (b - c)]






39. What is the slope of a horizontal line?






40. Legs 5 - 12. Hypotenuse?






41. 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)?






42. Surface area for a cylinder?






43. Which quadrant is the upper right hand?






44. Can you add sqrt 3 and sqrt 5?






45. If 10800 is invested at a simple interest rate of 4% - what is the value of the investment after 18 months?






46. What are the real numbers?






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






48. What is the 'Range' of a function?






49. What is the empty set?






50. 1/8 in percent?