In this module, you'll learn all of the concepts, techniques and strategies needed to answer arithmetic questions on the GRE. In particular, this module covers:

 Properties of numbers Order of operations Signed numbers Decimals Absolute value  Fractions Percents Ratios

### Two ways to prepare

Beneath most of the video lessons below, you’ll find a Reinforcement Activities box containing practice questions that are specifically related to the concepts covered in that lesson (e.g., the lesson on working with percents). With this lesson format, you have two study options:

• Watch the video lesson first and then reinforce your learning by answering several related questions, or. . .
• Tackle the practice questions first and watch the lesson only if you need help with the concepts the practice questions test

For more on this learning strategy, read the “How to Beat the GRE” section of the course overview page.

## GRE ARITHMETIC VIDEOS

• 1. Lesson: Properties of Real Numbers (5:42)
• 2. Lesson: Operations with Signed Numbers - Part I (6:47)
• 3. Lesson: Operations with Signed Numbers - Part II (9:14)
• 4. Question: Laws and Order (2:00)
• 5. Question: Absolute Value with Subtraction (1:10)
• 6. Lesson: Introduction to Decimals (7:55)
• 7. Question: K Rounded to the Nearest Tenth (2:12)
• 8. Lesson: Working with Powers of Ten (3:20)
• 9. Lesson: Introduction to Fractions (8:37)
• 10. Lesson: Conversions with Fractions and Decimals (6:21)
• 11. Lesson: Properties of Fractions - Part I (5:55)
• 12. Question: Fractions within Fractions (1:23)
• 13. Lesson: Operations with Fractions (8:13)
• 14. Question: Product of Many Fractions (2:12)
• 15. Lesson: Properties of Fractions - Part II (5:29)
• 16. Question: Fraction with Many Operations (2:10)
• 17. Question: Fractions with Variables (0:47)
• 18. Question: Evaluate a Fraction (2:28)
• 19. Lesson: Word Problems with Fractions (3:58)
• 20. Question: Jets Fans in a Dormitory (3:44)
• 21. Lesson: Introduction to Percent (7:13)
• 22. Lesson: Working with Percent (8:07)
• 23. Question: c is What Percent of b? (1:50)
• 24. Lesson: Finding x Percent of y (5:31)
• 25. Question: Some Percent of Something (0:35)
• 26. Question: Broken Plates (2:28)
• 27. Lesson: Percent Increases and Decreases (11:02)
• 28. Question: Population Increase (2:44)
• 29. Lesson: Simple Interest and Compound Interest (7:10)
• 30. Lesson: Introduction to Ratios (8:14)
• 31. Question: Dividing an Inheritance (2:04)
• 32. Lesson: Combining Ratios (4:51)
• 33. Question: Find the 3-Part Ratio (3:19)
• 34. Lesson: Ratios and Rates (7:32)
• 35. Question: Autographs (2:34)
• 36. Question: 44 Percent of W (3:05)
• 37. Question: Minimum Number of Marbles (2:10)
• 38. Question: Students at ABC Academy (2:46)
• 39. Question: Children Playing Tennis (3:33)
• 40. Question: Sum of 4 Unknown Digits (3:39)
• 41. Question: d percent of d (2:09)
• 42. Question: 3 Flasks (1:35)
Total viewing time for the GRE Arithmetic module: 184 minutes.

## Practice from the Official Guide

Practice the skills and GRE-specific strategies you learned in this module by answering the following questions from the Official Guide to the GRE (3rd edition):

• 116(3), 122(2), 129(1), 131(4), 155(1), 156(3), 157(8), 157(10), 158(11), 164(14), 232(1-2), 232(9-11), 233(12-13), 262(10-11), 262(13)

Here are the related questions in the Official Guide to the GRE (1st or 2nd edition):

• 111(3), 118(2), 124(1), 126(4), 145(1), 146(3), 147(8), 148(10-11), 149(14), 154(14)

Note: The above practice questions are listed in the form page#(question#). So, for example, 116(3) represents question #3 on page 111.