If you want to enter numbers quickly on the computer, you can use the keyboard.

The specific operation is as follows:

At the beginning, the index finger, middle finger and ring finger of the right hand are lightly placed on the number 4, 5 and 6 keys respectively, and the thumb is placed on the number 0 key. These keys are reference keys.

When you want to enter a number, each number you enter corresponds to moving a finger. After entering this number, you will naturally put your finger back on the benchmark key quickly.

Division of labor for each finger:

Only dial the number 0 for the thumb, 1, 4 and 7 for the index finger, 2, 5 and 8 for the middle finger and 3, 6 and 9 for the ring finger. (No little finger needed)