Since July 8 2014 this app is completely FREE again, with NO ADS!
102 * 106 = 10812: YOU can calculate this in LESS than three seconds! Well, after you've learned a math trick for this ;). Dowload this app and learn to solve certain math problems in just a few seconds!
This app has tricks for multiplying numbers, squaring numbers, and also fast checks for divisibility. For instance, there is a trick to check whether a number (like 23585) is divisible by three in just a few seconds.
With this app, you can learn math tricks in a dynamic way. You can practice the tricks you learned and see how fast you are in each trick.
Some math tricks you can learn with this app
- Multiply two numbers near hundred in a few seconds (for example 107*109)
- Square any number ending in '5' or '55', like 355*355 or 65*65
- Multiply any two numbers below hundred, like 47*81
- Fast checks for divisibility by 2,3,4,5,6,7
- Square numbers near fifty in seconds, like 56*56
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