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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. Define a 'monomial'






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






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






4. What is the intersection of A and B?






5. (x^2)^4






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






7. What is the sum of the angles of a triangle?






8. 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?






9. What are the irrational numbers?

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






11. a^2 - b^2






12. a^0 =






13. What is an exterior angle?






14. 3/8 in percent?






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






16. A number is divisible by 6 if...






17. Which quadrant is the upper left hand?






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






19. Suppose that the graph of f(x) is the result of stretching y=x + 5 away from the x-axis by a factor of 2. What is the new equation for the graph f(x)?






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






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






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






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






24. Order of quadrants:






25. What is a chord of a circle?






26. 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)]?






27. How to find the circumference of a circle which circumscribes a square?






28. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






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






30. 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.






31. 30< all primes<40






32. Formula for the area of a circle?






33. 70 < all primes< 80






34. 8.84 / 5.2






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






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






37. 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?






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






39. What is a set with no members called?






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






41. What does the graph (x+2)^2 + (y+2)^2 = 9 look like?






42. What are the rational numbers?






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






44. What is the 'Range' of a function?






45. 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?






46. x^(-y)=






47. The objects in a set are called two names:






48. Legs 6 - 8. Hypotenuse?






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






50. Number of degrees in a triangle