gmult software package provides figure out which letters are which numbers, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gmult
gmult is installed in your system.
Make ensure the gmult package were installed using the commands given below,
$ sudo dpkg-query -l | grep gmult *
You will get with gmult package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Games |
| Package | gmult |
| Version | 8.0-2 |
| Description | figure out which letters are which numbers |
| Sub Section | Games |