Start with a deck of cards. Before the trick, sneak a peek at the 10th card in the deck. Memorize it. Ask your volunteer to add the first and second digit of their number together. For instance, if he ...

Boost your math skills quickly with these easy-to-follow, practical techniques. Perfect for students, parents, and anyone ...

Imagine you're a trader. You're on the trading floor, trying to price out if a 15-year bond issued by General Electric will generate the returns needed to placate your investors. Bad news, your ...

To multiply two numbers with the same unit places, such as 97 and 98, one can write it as (100-3) x (100-2). Next, add the two numbers 3 and 2 together, which gives 5. Subtract 5 from 100 (as it falls ...

Want to be great at math and impress everyone with your quick thinking? You've found the perfect place! Forget boring memorization and long calculations; get ready for a fun journey where math becomes ...

Posts from this author will be added to your daily email digest and your homepage feed. is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 ...