You are downloading the Math Scale AppX file v18.104.22.168 for Windows Phone. Math Scale is a free and fun Educational game: Math scale is a game which benefits from serious gaming. The objective is to use the numbered balls and throw them to the right or left water balloon ... You can now download the offline AppX file to install & try it.
Download Locations for Math Scale 22.214.171.124 AppX file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Math Scale AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.