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






2. 25^(1/2) or sqrt. 25 =






3. What percent of 40 is 22?






4. What is an arc of a circle?






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






6. Convert 0.7% to a fraction.






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






8. What is the order of operations?






9. 4.809 X 10^7 =






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






11. 10<all primes<20






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






13. What is the slope of a horizontal line?






14. How to find the area of a sector?






15. 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)






16. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






17. What are complementary angles?






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






19. 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.






20. 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?






21. a^0 =






22. What is the surface area of a cylinder with radius 5 and height 8?






23. What is the slope of a vertical line?

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24. What is a parabola?






25. Evaluate 3& 2/7 / 1/3






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






27. 40 < all primes<50






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






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






30. Circumference of a circle?






31. Order of quadrants:






32. What is the set of elements found in both A and B?






33. What is the 'Solution' for a system of linear equations?






34. What is the absolute value function?






35. Which quandrant is the lower right hand?






36. Legs 6 - 8. Hypotenuse?






37. P and r are factors of 100. What is greater - pr or 100?






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






39. What are 'Supplementary angles?'






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






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






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






43. 10^6 has how many zeroes?






44. 60 < all primes <70






45. 5x^2 - 35x -55 = 0






46. What are congruent triangles?






47. What is a tangent?






48. To multiply a number by 10^x






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






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