
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 …
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 …
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 …
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 …