Practicing Mental Math
Regardless of using mental math tricks as a party thing or trying to keep your brain sharp and healthy, it has always bothered me that there was a lack of websites dedicated to practicing mental math tricks. On this page, I present three small web applications to help you practice these mental tricks.
Calculating the Weekday on any date
The first application is for practicing the week of the day for any date in any century. e.g. what is the weekday of Sep 4, 1957?
This application generates some random days based on one or more centuries selected and you can check your answer and keep track of your score.
Click here ->Day of Week practice
Calculating Cubic root in your head
The second application helps you practice the mental cube root of a randomly generated cubic square of an integer number.
You can choose between cubic roots of 1, 2, or 3-digit numbers.
Click here ->Nrooth Practice
Practicing Modulo Calculation
The third application is for practicing mental modulo calculation which is useful for checking the validity of the addition or multiplication of several numbers plus the Casting out 9 math trick.
Click Here ->Casting out 9