In case you logged into an SSH session and your numeric keypad is not working, follow these steps to fix the problem:
1) Go to Change Settings… -> Terminal -> Features
2) Check the option Disable application keypad mode
Test your numeric keypad and it should work.
Sometimes the Home key also goes wrong displaying some ~ instead of returning back to the beginning of the line.
To correct that go to:
1) Go to Change Settings… -> Terminal -> Keyboard
2) Select xterm in The Home and End keys section
Your Home and End keys should work properly.
Let me know in the comments below if you have some problems to make your keyboard working