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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^-1)/a^5






2. a^2 - b^2 =






3. Evaluate (4^3)^2






4. Define a 'Term' -






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






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






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






8. What is a finite set?






9. Pi is a ratio of what to what?

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10. What are the real numbers?






11. 30< all primes<40






12. a^2 + 2ab + b^2






13. Formula of rectangle where l increases by 20% and w decreases by 20%






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






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






16. What does scientific notation mean?






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






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






19. Which quadrant is the upper right hand?






20. What are the integers?






21. 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?






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






23. Hector invested $6000. Part was invested in account with 9% simple annual interest - and the rest in account with 7% simple annual interest. If he earned $490 in the first year of these investments - how much did he invest in each account?






24. What is the percent formula?






25. 50 < all primes< 60






26. Convert 0.7% to a fraction.






27. 413.03 x 10^(-4) =






28. Order of quadrants:






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






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






31. What is the empty set?






32. What is the absolute value function?






33. Circumference of a circle?






34. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?






35. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






36. To convert a percent to a fraction....






37. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?






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






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






40. Reduce: 4.8 : 0.8 : 1.6






41. To multiply a number by 10^x






42. 3/8 in percent?






43. Factor a^2 + 2ab + b^2






44. 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.






45. What are 'Supplementary angles?'






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






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






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






49. What are complementary angles?






50. The slope of a line perpendicular to (a/b)?