## Test your basic knowledge |

# GRE High Frequency Math Terms

**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 number goes on the bottom of a probability fraction?**

**2. Convert to a percentage: 3/5**

**3. How precise do you need to be - using p on the GRE?**

**4. What'S a handy rough estimate for a circle'S perimeter - if you know it'S diameter?**

**5. HIGH: How do you multiply and divide square roots?**

**6. An integer is divisible by 2 if...**

**7. HIGH: What is the formula for the diagonal of any square?**

**8. Explain how to divide fractions.**

**9. What kind of triangle is this: has two sides of equal length - and a 90 degree angle?**

**10. Does order matter for a permutation? How about for a combination?**

**11. How do you solve a permutation?**

**12. HIGH: Area of a circle**

**13. Probability Formula**

**14. HIGH: How do you calculate the length of an arc?**

**15. How do you calculate the percentage of change?**

**16. HIGH: Rough est. of v2 =**

**17. HIGH: What is the factored version of (x+y)(x-y) ?**

**18. List two odd behaviors of exponents**

**19. When 2 lines are perpendicular to each other - their intersection forms 4 angles. What degree are these 4 angles?**

**20. How do you add or subtract fractions?**

**21. What causes 80% of errors on the math section of the GRE?**

**22. On the GRE - should you ever assume that diagrams are truthful?**

**23. HIGH: How do you get rid of the fraction in this equation: 5x + 3/2 = 7x**

**24. HIGH: What is the Pythagorean theorem?**

**25. Define the mode of a set of numbers.**

**26. What is the equation for a group problem?**

**27. How is a range expressed with inequalities?**

**28. Diameter of a circle?**

**29. What is the formula to determine probability?**

**30. Solve this: v6 * -v6 = ?**

**31. HIGH: What is the mode?**

**32. Define the range of a set of numbers.**

**33. How many angles are formed when 2 lines intersect? and what is the sum of these angles?**

**34. v4 =**

**35. An integer is divisible by 4 if...**

**36. HIGH: how do you calculate a diagonal inside a 3-dimensional rectangular box?**

**37. List all the prime numbers that are less than 30:**

**38. Explain how to calculate an average (arithmetic mean)**

**39. How do you multiply fractions?**

**40. What is one misleading characteristic of quadratic equations that will be exploited on the GRE?**

**41. HIGH: What is 'absolute value' - and how is it represented?**

**42. Explain how to solve for 7/**

**43. HIGH: how do you calculate the surface area of a rectangular box?**

**44. How many degrees does a circle contain?**

**45. The probability of an event happening and the probability of an event NOT happening must add up to what number?**

**46. HIGH: What are the percentages for standard deviation?**

**47. What is the factored version of x -2xy + y ?**

**48. HIGH: What is a '30:60:90' triangle?**

**49. Define a factorial of a number - and how it is written.**

**50. HIGH: List the two most common side ratios for right triangles**