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






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






3. To convert a decimal to a percent...






4. How many multiples does a given number have?






5. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






6. What is the ratio of the sides of a 30-60-90 triangle?






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






8. What is the 'Restricted domain of a function'?






9. 413.03 x 10^(-4) =






10. a^2 + 2ab + b^2






11. What are the rational numbers?






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






13. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






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






15. Formula for the area of a circle?






16. 30< all primes<40






17. Whats the difference between factors and multiples?






18. Define a 'monomial'






19. How many 3-digit positive integers are even and do not contain the digit 4?






20. If a=-1 and b=3 - what is the value of (4(a^3)(b^2) - 12(a^2)(b^5)) / (16(a^3)(b^2))?






21. 0^0






22. What is the formula for compounded interest?






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






24. When does a function automatically have a restricted domain (2)?






25. 1/6 in percent?






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






27. Find the surface area of a cylinder with radius 3 and height 12.






28. What is the absolute value function?






29. 6w^2 - w - 15 = 0






30. 40 < all primes<50






31. What is the intersection of A and B?






32. What are the real numbers?






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






35. Define a 'Term' -






36. 5/8 in percent?






37. Legs 5 - 12. Hypotenuse?






38. Can you subtract 3sqrt4 from sqrt4?






39. Formula for the area of a sector of a circle?






40. What is an exterior angle?






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






42. (x^2)^4






43. 4.809 X 10^7 =






44. What is the name of set with a number of elements which cannot be counted?






45. 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?






46. What is an arc of a circle?






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






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






49. Which quadrant is the upper right hand?






50. x^6 / x^3