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






2. 5/6 in percent?






3. How to determine percent increase?






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






5. What are the integers?






6. 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?






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 a major arc?

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






10. 30< all primes<40






11. What are congruent triangles?






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






13. Which quadrant is the upper right hand?






14. What is a central angle?






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






16. 10<all primes<20






17. What is an isoceles triangle?






18. 6w^2 - w - 15 = 0






19. When the 'a' in the parabola is negative...






20. What is a parabola?






21. Length of an arc of a circle?






22. Whats the difference between factors and multiples?






23. 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?






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






25. 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?






26. 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))?






27. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






28. How to find the area of a sector?






29. What transformation occurs if point C is reflected over the x-axis and then the y-axis?






30. Which quadrant is the lower left hand?






31. 413.03 x 10^(-4) =






32. If you have a set of n objects - but you only want to order k of them - what formula do you use to determine the number of permutations?






33. Max and Min lengths for a side of a triangle?






34. 50 < all primes< 60






35. To multiply a number by 10^x






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






37. What is the absolute value function?






38. What are 'Supplementary angles?'






39. What is the empty set?






40. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)






41. A cylinder has a surface area of 22pi. If the cylinder has a height of 10 - what is the radius?






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






43. What is the order of operations?






44. Can the output value of a function have more than one input value?






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






46. Which quadrant is the upper left hand?






47. How to determine percent decrease?






48. (-1)^3 =






49. Formula for the area of a circle?






50. 10^6 has how many zeroes?