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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^2 - b^2






2. 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?






3. Define a 'Term' -






4. Whats the difference between factors and multiples?






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






6. 10^6 has how many zeroes?






7. What is the empty set?






8. What is an exterior angle?






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






10. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






11. Can you subtract 3sqrt4 from sqrt4?






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






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






14. 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)?






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






16. 4.809 X 10^7 =






17. Can you simplify sqrt72?






18. Legs 6 - 8. Hypotenuse?






19. 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






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






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






22. Formula to calculate arc length?






23. Evaluate 4/11 + 11/12






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






25. What is the name for a grouping of the members within a set based on a shared characteristic?






26. a^0 =






27. To convert a percent to a fraction....






28. (12sqrt15) / (2sqrt5) =






29. What is the slope of a horizontal line?






30. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?






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






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






33. 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?






34. 50 < all primes< 60






35. Reduce: 4.8 : 0.8 : 1.6






36. A number is divisible by 4 is...






37. 60 < all primes <70






38. (a^-1)/a^5






39. Evaluate (4^3)^2






40. What are complementary angles?






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






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






43. If r - t - s & u are distinct - consecutive prime numbers - less than 31 - which of the following could be an average of them (4 - 4.25 - 6 - 9 - 24 - 22 - 24)






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






45. What is a minor arc?

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






47. a^2 - b^2 =






48. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






49. A number is divisible by 6 if...






50. 8.84 / 5.2