Trach - Trachtenberg

Amazing app and easy to learn but how do you do 3 digits by 2 digits multiplication and can you do division with this method.

This app is so amazing and it’s helping me so much with math. I recommend this app o anybody who wants a easy and fast way to do any equation.

This app is well made. However, it doesn’t give enough information. How do I multiple by 3 digit 11’s and turn it into a 4 digit number? Not sure!

Love it! Very well done app and productive way to pass time

Thank you so much for creating this. The tutorial sections are clear, concise, and intuitive. The testing section is wonderful for practicing what you have learned. I wanted to let you know how impressed I was by the first few iterations you have released. Great work so far. I really hope you decide to continue working on this. You might just be training the next Euler!

This app is great! Had fun while learning. Very well explained.

Awesome app and I learned so much!