# Ch 11: GRE Quantitative Reasoning - Numbers and Operations: Tutoring Solution

### About This Chapter

## How it works:

- Begin your assignment or other quantitative reasoning work.
- Identify the numbers and operations concepts that you're stuck on.
- Find fun videos on the topics you need to understand.
- Press play, watch and learn!
- Complete the quizzes to test your understanding.
- As needed, submit a question to one of our instructors for personalized support.

## Who's it for?

This chapter of our GRE Quantitative Reasoning Tutoring Solution will benefit any student who is trying to learn about numbers and operations and pass the GRE. This resource can help students including those who:

- Struggle with understanding arithmetic with whole numbers, fractions, scientific notation, radicals, prime factorization, ratios and proportions, or any other numbers and operations topic
- Have limited time for studying
- Want a cost effective way to supplement their math learning and prepare for the GRE
- Prefer learning math visually
- Find themselves struggling with numbers and operations
- Cope with ADD or ADHD
- Want to answer the quantitative reasoning questions on the GRE correctly
- Need access to GRE math materials

## Why it works:

**Engaging Tutors:**We make learning about numbers and operations simple and fun.**Cost Efficient:**For less than 20% of the cost of a private tutor, you'll have unlimited access 24/7.**Consistent High Quality:**Unlike a live GRE prep tutor, these video lessons are thoroughly reviewed.**Convenient:**Imagine a tutor as portable as your laptop, tablet or smartphone. Learn about numbers and operations on the go!**Learn at Your Pace:**You can pause and rewatch lessons as often as you'd like, until you master the material.

## Learning objectives

- Identify the different types of numbers.
- Learn how to solve percent and word problems.
- Work with absolute values, fractions and radicals.
- Find the greatest common factor or least common multiple.
- Understand ratios and proportions.

### 1. What are the Different Types of Numbers?

Learn all of the different types of numbers: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. This video lesson teaches you how to classify any numbers you come across.

### 2. Arithmetic with Whole Numbers

There are four basic mathematical operations: addition, subtraction, multiplication, and division. These four operations are used in a wide range of everyday skills and are the fundamental blocks of arithmetic.

### 3. Solving Word Problems: Steps & Examples

Watch this video lesson to learn how you can solve word problems by following this 3-step process. Learn how to visualize your problem so you fully understand it. Then learn how to write and solve your equations.

### 4. Scientific Notation: Definition and Examples

Scientific notation is a special way of writing numbers so they are easier to work with. This lesson will define scientific notations and show some examples of how to convert numbers from standard notation to scientific notation and back.

### 5. What is an Absolute Value?

When we're talking and comparing numbers, we often don't care whether its positive or negative, just how big it is. This is often called the magnitude of a number and we find it by taking the absolute value. Learn all about it here!

### 6. Using the Number Line to Compare Decimals, Fractions, and Whole Numbers

Watch this video lesson to learn how useful the number line can be when you need to compare two different numbers, be they whole numbers, decimals or even fractions. Learn how to plot these numbers on the number line so you can compare them.

### 7. How to Find the Greatest Common Factor

If the factors of a number are the different numbers that you can multiply together to get that original number, then the greatest common factor of two numbers is just the biggest one that both have in common. See some examples of what I'm talking about here!

### 8. How to Find the Prime Factorization of a Number

The prime factorization of a number involves breaking that number down to its smallest parts. This lesson will show you two different ways to discover the prime factorization of any number.

### 9. How to Find the Least Common Multiple

The least common multiple of two numbers is the smallest number that can be divided evenly by your two original numbers. See some examples of what I'm talking about here!

### 10. Calculations with Ratios and Proportions

Even if only 99 out of 100 people need to know how to work with ratios, the odds that they'll be useful to you are very high. In this lesson, we'll practice performing calculations with ratios and proportions.

### 11. Solve Problems Using Percents

Percents are your friend. Think of all the cool things percents do for you. They save you money, and they tell you how well you are doing in school. Learn how you can solve problems with percents in this video lesson.

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### Other Chapters

Other chapters within the GRE Prep: Tutoring Solution course

- GRE Verbal Reasoning - Reading Skills: Tutoring Solution
- GRE Verbal Reasoning - Vocabulary Skills: Tutoring Solution
- GRE Analytical Writing - Crafting Your Argument: Tutoring Solution
- GRE Analytical Writing - Planning Your Essay: Tutoring Solution
- GRE Analytical Writing - Starting Your Essay: Tutoring Solution
- GRE Analytical Writing - Writing the Essay Body: Tutoring Solution
- GRE Analytical Writing - Editing Your Essay: Tutoring Solution
- GRE Analytical Writing - Writing Technique: Tutoring Solution
- GRE Analytical Writing - Writing Stronger Sentences: Tutoring Solution
- GRE Analytical Writing - Grammar and Usage: Tutoring Solution
- GRE Quantitative Reasoning - Sequences and Series: Tutoring Solution
- GRE Quantitative Reasoning - Equations and Expressions: Tutoring Solution
- GRE Quantitative Reasoning - Factoring with FOIL, Graphing Parabolas and Solving Quadratics: Tutoring Solution
- GRE Quantitative Reasoning - Exponents: Tutoring Solution
- GRE Quantitative Reasoning - Functions: Tutoring Solution
- GRE Quantitative Reasoning - Rational Equations and Expressions: Tutoring Solution
- GRE Quantitative Reasoning - Inequalities: Tutoring Solution
- GRE Quantitative Reasoning - Plane Geometry: Tutoring Solution
- GRE Quantitative Reasoning - Coordinate Geometry: Tutoring Solution
- GRE Quantitative Reasoning - Probability and Statistics: Tutoring Solution
- GRE Quantitative Reasoning - Sets: Tutoring Solution
- GRE Prep Flashcards