
Decimals and place value | Arithmetic | Math | Khan Academy
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.
Decimal place value (video) | Khan Academy
Sal introduces decimal numbers and understanding place value to the right of the decimal.
Understanding decimal multiplication (video) | Khan Academy
This video introduces multiplying decimals, emphasizing the role of decimal placement in the product. It highlights the usefulness of estimation in simplifying calculations and understanding the relationship …
Decimal place value (video) | Decimals | Khan Academy
Introduction to decimal place values and the value of decimal digits. Created by Sal Khan and Monterey Institute for Technology and Education.
Decimal system refresher | AP CSP (video) | Khan Academy
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 …
Understand decimals | 4th grade math | Khan Academy
Learn Decimals as words Relating decimals and fractions in words Decimal place value
Place value with decimals (video) | Khan Academy
Place value and decimals are related. We can begin by reviewing the concept of ones, tens, and hundreds places, and then demonstrates how tenths, hundredths, and thousandths places work. By …
Decimal multiplication place value (video) | Khan Academy
Sal is explaining where to put the decimal when you multiply them. This can be confusing so Sal breaks it down.
Genetic drift (article) | Natural selection | Khan Academy
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Decimal place value | 5th grade math | Khan Academy
Put on your math detective hat and dive into this unit on decimal place value. You'll learn how to locate decimals on a number line, see which ones are bigger or smaller, and round them to the nearest …