Q. A while back you had multiplication tricks by 9’s in the Orange County Register. You were nice enough to e-mail me the information after I lost the column. I recently gave the information to my ...

Vedic Maths Tricks for Multiplication: Vedic Maths is an ancient calculation system comprising a collection of techniques and sutras to solve mathematical problems easily and faster. It includes 16 ...

Back in primary school when we were learning how to multiply two, multi-digit numbers by hand, our teacher showed us a little trick to verify that we had the correct result calculated. I was impressed ...

What are you like at multiplications? Chances are if you're a mere mortal 2, 5s and 10s won't seem too taxing. But when it comes to figuring out what 42x21 is, you may wish somebody had shown you the ...

If you're down to learn something cool and quick this early in the year, a multiplication "trick" attributed to the Japanese may be your best bet. The graphic method, which makes use of sticks and ...

What are you like at multiplications? Chances are if you're a mere mortal 2, 5s and 10s won't seem too taxing. But when it comes to figuring out what 42x21 is, you may wish somebody had shown you the ...

Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

What are you like at multiplications? Chances are if you're a mere mortal 2, 5s and 10s won't seem too taxing. But when it comes to figuring out what 42x21 is, you may wish somebody had shown you the ...

Swapping numbers for lines can make the hardest mental arithmetic seem easy peasy and this is how to do it What are you like at multiplications? Chances are if you're a mere mortal 2, 5s and 10s won't ...