## At A Glance

### Place value

You've been counting for a while now. It's second nature to go from "9" to "10" or "99" to "100", but what are you really doing when you add another digit? How do we represent so many numbers (really as many as we want) with only 10 number symbols (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)?In this tutorial you'll learn about place value. This is key to better understanding what you're really doing when you count, carry, regroup, multiply and divide with mult-digit numbers. If you really think about...

Topics: Algebra, General Mathematics
Cost: Free

## Overview

### Description

You've been counting for a while now. It's second nature to go from "9" to "10" or "99" to "100", but what are you really doing when you add another digit? How do we represent so many numbers (really as many as we want) with only 10 number symbols (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)?In this tutorial you'll learn about place value. This is key to better understanding what you're really doing when you count, carry, regroup, multiply and divide with mult-digit numbers. If you really think about it, it might change your worldview forever!

### Details

• Days of the Week: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
• Level of Difficulty: Beginner
• Size: One-on-One
• Instructor: Sal Khan
• Cost: Free
• Institution: Khan Academy
• Topics: Algebra, General Mathematics

## Provider Overview

About Khan Academy: Khan Academy is an organization on a mission. Khan Academy is a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.

### Latest Tweet

Khan Academy Offers Courses In: Mathematics

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