One of the challenges of learning the Russian language is memorizing case endings. The case endings tables will help you to decline nouns by finding similar sample words in the table.
In the grammar tables you’ll find a few typical words that have the most common sets of case endings. Each table shows those words put in the particular case. The changes of endings are specifically shown in a separate column, so you could track the endings easily. All you need is just to determine what sample word matches your noun and change the ending accordingly.
The downloadable PDF contains six tables and the instruction.