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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. Evaluate 4/11 + 11/12






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






3. Legs 5 - 12. Hypotenuse?






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






5. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






6. Factor x^2 - xy + x.






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






8. 1/6 in percent?






9. What is a minor arc?

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10. To convert a decimal to a percent...






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






12. 7/8 in percent?






13. 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






14. What is a chord of a circle?






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






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






17. 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?






18. 10^6 has how many zeroes?






19. What is the area of a regular hexagon with side 6?






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






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






22. What are complementary angles?






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






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






25. 8.84 / 5.2






26. In a regular polygon with n sides - the formula for the sum of interior angles






27. What is the percent formula?






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






29. What is the maximum value for the function g(x) = (-2x^2) -1?






30. x^4 + x^7 =






31. What are 'Supplementary angles?'






32. What is a piecewise equation?






33. Area of a triangle?






34. Formula to find a circle'S circumference from its radius?






35. Volume for a cylinder?






36. Which quandrant is the lower right hand?






37. 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?






38. a^0 =






39. Can you add sqrt 3 and sqrt 5?






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






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






42. Can you subtract 3sqrt4 from sqrt4?






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






44. What is the slope of a vertical line?

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45. Reduce: 4.8 : 0.8 : 1.6






46. What is the slope of a horizontal line?






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






48. What are the integers?






49. What are the irrational numbers?

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