It may look like a fun game, but these young math whizzes are showing off a unique technique to figure out math calculations. Using the abacus system of mental calculation the girls are manipulating an imaginary abacus, freeing them from needing a calculator or pencil and paper. All that’s needed are their hands and minds to solve intense calculations in a matter of seconds.

This method of teaching is not new, but has recently become popular in India, China and Japan as a way to develop mental memory and decrease kids’ dependence on technology. And clearly it’s working, as these girls are killing it!