In this topic, we will learn what a decimal is and how to show it visually and on a number line. We will also add, subtract, multiply, and divide with decimals.

Sal introduces decimal numbers and understanding place value to the right of the decimal.

In this topic, we will learn what a decimal is and how to show it visually and on a number line. We will also add, subtract, multiply, and divide with decimals.

Want to learn more about decimal place value? Check out this video. Want to review whole number place value? Check out this article.

Learn how to add decimals, specifically to the tenths. Practice adding whole numbers first, then adding the decimal parts. Learn the concept of carrying over in decimal addition.

Introduction to decimal place values and the value of decimal digits. Created by Sal Khan and Monterey Institute for Technology and Education.

To figure out where the decimal belongs in your answer, put your fingers on each decimal in the numbers you multiplied together. Then, trace the decimals until your fingers meet at a corner in the …

Review how the decimal number system works before diving into the binary number system. The decimal number system and binary number system work the same way; the only difference is what …

How do I compare two decimals? To compare two decimals, we can look at the whole numbers before the decimal point. If one of these is larger, we know that number is larger overall. If the whole …

If it was two times three, we'd get to six. If it was three times four, we'd get to 12. So it'd be in between those. So the only place to put the decimal here, that'd be in between six and 12 would be right over …