Explore decimal fractions to represent and connect fractions and decimals. Represent fractions as parts of a set using the decimal fraction one-tenth (0.1). Practice reading decimals. Explore mixed ...

Represent fractions as parts of a set using the decimal fraction one-hundredth (0.01). Practice reading and writing decimals. Explore mixed fractions and decimals. Compare mixed decimals. Understand ...

Time to test your brain! Are you a puzzle person? Most of these hard math problems aren’t straightforward arithmetic. They challenge you to look at problems a different way, testing your logic and ...

Go to the decimal point. Count along the first 3 numbers to the right. Look at the next number (the 4th number after the decimal place).

NPR's Scott Simon talks to math historian Glen Van Brummelen about his finding that the decimal point appeared in the 1440s, earlier than thought. How did the decimal point come to be? - the dot that ...

When you multiply decimals by integers (whole numbers), you can use everything you already know about multiplying multi-digit numbers. You can use written or mental methods to multiply decimals by ...