The Game of Solitaire
If you wish to practice alone, take the Code cards and shuffle with the words up, noting the time when you begin. See how quickly you can go through the entire set, naming the numbers for the words. Then reverse the process and name the words for the numbers.
Now try it again and see if you can cut a few seconds off the time. Keep a record of the time required to go each way and strive continuously to reduce it. Keep at this until you can go through the 100 cards in two and a half minutes or less.
Another Game of Solitaire
Take the Code cards and shuffle them thoroughly then arrange them in their consecutive order, beginning with Tie and following with each word in its proper place. For another test start ten rows of cards upon the table, each starting with a Code word ending in one, as Tie, Dot, Net, Meat, Heart, etc. Now follow each card with the next word in its list, placing the cards in their proper lists as you come to them. This will help you to become acquainted with the words in their proper order and to become familiar with them.
The above exercises will increase in interest if you consider them from the number value. Shuffle the set and arrange them in consecutive order, thinking of the number value of the word, but not referring to the number on the back of the card unless forced to do so. The second test will be arranging them in sets of ten, beginning with 1, 11, 21, 31, 41, etc.
Shuffle the cards again and arrange them in the following order, always using the words but figuring their number value for your guide in the arrangement. Arrange them in horizontal lines thus:
1-11-21-31-41-51-61-71-81-91
2-12-22-32-42-52-62-72-82-92
3-13-23-33-43-53-63-73-83-93
4-14-24-34-44-54-64-74-84-94
5-15-25-35-45-55-65-75-85-95
6-16-26-36-46-56-66-76-86-96
7-17-27-37-47-57-67-77-87-97
Follow through the set in the same manner. After you have completed any of these tests, reverse it and do the same, beginning with the larger numbers and working back to the smaller ones.