Japanese kids learn to multiply with a completely different method than the one kids in the US do. The Japanese math voodoo/magic is more of a visual technique where you draw lines and count the ...

Emily Long is a freelance writer based in Salt Lake City. After graduating from Duke University, she spent several years reporting on the federal workforce for Government Executive, a publication of ...

This requires an algorithm: students are taught to stack one number atop another and multiply each digit of the bottom number ...

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 ...

In this method the smaller number is partitioned (broken down into tens and units). \({27}\) is broken down into \({10}\), \({10}\) and \({7}\). The method of partitioning into tens, simplifies the ...