## 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. Convert to a percentage: 1/4**

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

**3. HIGH: What is the unfactored version of (x+y) ?**

**4. How do you calculate the probability of two events in a row? (Probability of A and B)**

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

**6. Simplify this: v32**

**7. An integer is divisible by 3 if...**

**8. Diameter of a circle?**

**9. Explain how to divide fractions.**

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

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

**12. What is an 'equilateral' triangle?**

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

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

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

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

**17. Convert to a percentage: 4/5**

**18. An integer is divisible by 8 if...**

**19. HIGH: What is the factored version of x + 2xy + y ?**

**20. What is the name of a line that extends from the center of a circle to the edge of a circle?**

**21. Explain how to use an 'Average Pie'**

**22. Define the median of a set of numbers - and how to find it for an odd and even number of values in a set.**

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

**24. HIGH: How do you multiply powers with the same base?**

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

**26. HIGH: What numbers does ETS hope you'll forget to consider - for quant comp questions?**

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

**28. HIGH: Explain a method for quickly comparing fractions with different denominators - to determine which is larger.**

**29. If x = 144 - does v144 = x?**

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

**31. HIGH: What is the order of math operations - and the mnemonic to remember it?**

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

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

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

**35. HIGH: To divide powers with the same base...**

**36. HIGH: Simplify this: v75/v27**

**37. v4 =**

**38. What are the side ratios for a 30:60:90 triangle?**

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

**40. What do combination problems usually ask for?**

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

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

**43. What degree angle is a line?**

**44. HIGH: what is the side ratio for a Right Isosceles triangle?**

**45. If something is possible but not certain - what is the numeric range of probability of it happening?**

**46. Explain the difference between a digit and a number.**

**47. What should you do BEFORE you start to solve a GRE math problem?**

**48. Area of a parallelogram?**

**49. HIGH: What is the unfactored version of (x-y) ?**

**50. What are 'vertical angles'?**