## At A Glance

### Moving the decimal to multiply and divide by 10

In our decimal number system, as we move places to the left, the place values increase by a factor of 10 (likewise, they decrease by a factor of 10 as we move rightward). This idea gets direct application when we multiply or divide a decimal number by 10 because it has the effect of shifting every place value one to the right or left (sometime seen as moving the decimal point).

Topics: Algebra, General Mathematics
Cost: Free

## Overview

### Description

In our decimal number system, as we move places to the left, the place values increase by a factor of 10 (likewise, they decrease by a factor of 10 as we move rightward). This idea gets direct application when we multiply or divide a decimal number by 10 because it has the effect of shifting every place value one to the right or left (sometime seen as moving the decimal point).

### 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