## Test your basic knowledge |

# GRE Math: Common Errors

**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. Is 0 even or odd?**

**2. What is the name of set with a number of elements which cannot be counted?**

**3. 5/6 in percent?**

**4. How many sides does a hexagon have?**

**5. The objects in a set are called two names:**

**6. What is the side length of an equilateral triangle with altitude 6?**

**7. Factor a^2 + 2ab + b^2**

**8. Can the input value of a function have more than one output value (i.e. x: y - y1)?**

**9. Convert 0.7% to a fraction.**

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

**11. Evaluate (4^3)^2**

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

**13. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?**

**14. a^2 - b^2 =**

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

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

**17. 1/6 in percent?**

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

**19. 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?**

**20. A number is divisible by 6 if...**

**21. 60 < all primes <70**

**22. Define a 'monomial'**

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

**24. Describe the relationship between 3x^2 and 3(x - 1)^2**

**25. When the 'a' in a parabola is positive....**

**26. Simplify the expression (p^2 - q^2)/ -5(q - p)**

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

**28. Nine coins are tossed simultaneously. In how many of the outcomes will the fourth coin tossed show heads?**

**29. What are the integers?**

**30. What are congruent triangles?**

**31. What are complementary angles?**

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

**33. 1/8 in percent?**

**34. Define an 'expression'.**

**35. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?**

**36. Number of degrees in a triangle**

**37. Area of a triangle?**

**38. What is a piecewise equation?**

**39. Which is greater? 64^5 or 16^8**

**40. 413.03 x 10^(-4) =**

**41. Legs 5 - 12. Hypotenuse?**

**42. Factor x^2 - xy + x.**

**43. When does a function automatically have a restricted domain (2)?**

**44. What is an isoceles triangle?**

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

**46. Formula for the area of a circle?**

**47. What is a set with no members called?**

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

**49. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?**

**50. What is the formula for computing simple interest?**