In our first three lessons we covered the first three rows of the keyboard. This being our fourth lesson, we shall, in keeping with custom, cover the fourth row. The number row.

The left index finger will control the 4 and 5 keys, the right index finger will control the 6 and 7 keys.
The left middle finger will control the 3 key, the right middle finger will control the 8 key.
The left ring finger will control the 2 key, the right ring finger will control the 9 key.
The left little finger will control the 1 key, the right little finger will control the 0 key.