This math trick can help you multiply any two-digit number by 11. Arlene Resendiz is TikTok’s resident math whiz. When she’s not working as a professional tutor, she’s teaching the internet the ...

Sometimes the easiest, simplest way to liven up a party, sleepover, family gathering or presentation to a class is to perform a magic trick. Most magic tricks require fancy costumes and props, but ...

You may draw examples from Miguel Secillano, Terence Tao, or even from Shakuntala Devi, all you want – but if getting your ...

Multiply Any Number by 11 in Seconds: Having the appropriate strategies may make math enjoyable and simple! One subject in which students frequently struggle is multiplication, particularly when ...

A number is divisible by 9 if the sum of its digits is greater than or equal to 9. 621 (6+2+1=9), for instance, is divisible by 9. Simply move the decimal point one place to the left to find the 10% ...

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 calculator is dead and the ...

Vedic Maths is a traditional mathematical system based on the Vedas. It helps you solve complex problems quickly and accurately. These effective tricks include a shortcut approach for addition, ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. There are tons of practical, real-world applications of ...

Flipping through a deck of cards in the library as her friends and classmates slough through books and papers means that, sometimes, people want answers from Carolyn Chen. "I usually have to reassure ...