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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. (x^2)^4






2. If 8 schools are in a conference - how many games are played if each team plays each other exactly once?






3. In similar hexagons - the ratio of the areas is 16:25. What is the ratio of their corresponding sides?






4. 7/8 in percent?






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






6. What is the empty set?






7. What is a major arc?

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8. 6w^2 - w - 15 = 0






9. Area of a triangle?






10. Define a 'Term' -






11. 10^6 has how many zeroes?






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






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






14. What is the formula for compounded interest?






15. Evaluate 4/11 + 11/12






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






17. What is a set with no members called?






18. What is a tangent?






19. 30< all primes<40






20. How many sides does a hexagon have?






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






22. What is the absolute value function?






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






24. What number between 70 & 75 - inclusive - has the greatest number of factors?






25. If an inequality is multiplied or divided by a negative number....






26. 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?






27. a^0 =






28. What is the percent formula?






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






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






31. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






32. What is the ratio of the sides of a 30-60-90 triangle?






33. What is a central angle?






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






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






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






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






38. What is the slope of a vertical line?

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39. 1/2 divided by 3/7 is the same as






40. 413.03 x 10^(-4) =






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






42. A number is divisible by 3 if ...






43. Volume for a cylinder?






44. 1/8 in percent?






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






46. What is a chord of a circle?






47. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






48. 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?






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






50. What is an exterior angle?







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