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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. Convert 0.7% to a fraction.






2. The number of degrees in the largest angle of a triangle inscribed in a circle - in which the diameter of the circle is one side of the triangle.






3. Evaluate (4^3)^2






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






5. What is a central angle?






6. What is the empty set?






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






8. Formula to calculate arc length?






9. (-1)^2 =






10. What is a parabola?






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






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






13. How to find the diagonal of a rectangular solid?






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






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






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






17. Length of an arc of a circle?






18. What does scientific notation mean?






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






20. 8.84 / 5.2






21. Legs 5 - 12. Hypotenuse?






22. Area of a triangle?






23. 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






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






25. What is the order of operations?






26. Reduce: 4.8 : 0.8 : 1.6






27. a^2 - 2ab + b^2






28. Simplify 9^(1/2) X 4^3 X 2^(-6)?






29. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






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






31. A number is divisible by 9 if...






32. What does the graph x^2 + y^2 = 64 look like?






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






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






35. 1/8 in percent?






36. When the 'a' in a parabola is positive....






37. 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?






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






39. 60 < all primes <70






40. sqrt 2(sqrt 6)=






41. 40 < all primes<50






42. What is a minor arc?

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43. 0^0






44. Formula for the area of a circle?






45. What is the absolute value function?






46. 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)






47. Evaluate 4/11 + 11/12






48. How many sides does a hexagon have?






49. 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?






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