The Number Code
The simplest and most practical basis which can be selected is the idea of choosing a SOUND to represent each one of the ten digits. These sounds can in turn be indicated by various consonants of the alphabet. By combining the ten digits we are able to make all figures, and by similarly combining the SOUNDS we can easily convert the figures which we wish to remember into words. The words will represent objects and can easily be impressed upon the brain. Your use of this idea is based upon your becoming thoroughly familiar with the ten SOUNDS representing the ten digits.
By combining these sounds corresponding to the arrangement of the digits, words can be formed to represent the figure. The word can be remembered. It has a meaning. It can be visualized and recalled, then easily translated into the corresponding digits.
Here are the ten digits and their corresponding SOUNDS. The sounds are indicated by the letters. Use the sound as spoken in the word, as "T" in "Ten." The sound used is always the same as in the spoken word, but not as a single letter. Not the sound "en" as a letter, but the sound of "N" in "Nell." Note this difference; it is important. Following is the Number Code:
Note carefully this cut in which the digit and letter used to represent the sound is made into a combined figure. This places the digit and the corresponding sound into your mind together. The picture of the combination should be impressed by concentration. Look at the digit letter and then close your eyes and see the same picture in your mind's eye. Exaggerate them. Take a pencil and paper and draw them for yourself. Note that the second letter N if stood on its side is 2, in the picture it is half way, which will suggest both to your mind. The M and 3 are the same. Become familiar with these so that there is no possibility of hesitation in recalling the SOUND for each digit.
The T and 1 are simple. The 2 and N and the 3 and M have been explained. The 6 turned to the left makes a J. The K for 7 is made of two 7s back to back, one leaning against the other. The P for 9 is turned as the 6 and J. Dwell a moment on this picture and you will know the Code.
There are other associations which will help to fix the digits and their corresponding sounds in mind.
T is selected for 1 because both are made with one down stroke. One down stroke with a short cross stroke makes the T.
N, for 2 is the same, two down strokes make the N.
M represents the 3 and there are three down strokes in the written M.
R is the last letter and principal sound in the word fouR, which has four letters.
L is the Roman numeral representing 50, similar to 5.
F selected for 8 has the two loops, when written.
C is the first letter and sound of the word Cipher.