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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 are congruent triangles?






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






3. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






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






5. Define a 'monomial'






6. What is a major arc?


7. What are complementary angles?






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






9. 70 < all primes< 80






10. What is the ratio of the sides of an isosceles right triangle?






11. What is the formula for compounded interest?






12. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?






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






14. 2sqrt4 + sqrt4 =






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






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






17. 4.809 X 10^7 =






18. A number is divisible by 4 is...






19. What is a minor arc?


20. What is the 'union' of A and B?






21. A brick with dimensions 10. 15 and 25 weighs 1.5 kg. A second brick (same density) has dimensions 12 - 18 - and 30. What is the weight of the second brick?






22. What is the percent formula?






23. x^6 / x^3






24. What is a central angle?






25. 5x^2 - 35x -55 = 0






26. What is an arc of a circle?






27. What is the intersection of A and B?






28. 60 < all primes <70






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






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






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






32. What are the irrational numbers?


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






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






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






36. 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?






37. What is the slope of a vertical line?


38. Suppose you have a set of n objects - and you want to select k of them - but the order doesn'T matter. What formula do you use to determine the number of combinations of n objects taken k at a time?






39. What is the name for a grouping of the members within a set based on a shared characteristic?






40. Area of a triangle?






41. 50 < all primes< 60






42. 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?






43. Evaluate (4^3)^2






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






45. a^2 - b^2 =






46. 413.03 x 10^(-4) =






47. (6sqrt3) x (2sqrt5) =






48. If the two sides of a triangle are unequal then the longer side...






49. How many sides does a hexagon have?






50. 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?