Codes for kids: Simple substitution ciphers

The idea of a simple substitution code

Simple substitution ciphers substitute one letter of the alphabet for another, in some random arrangement. Here is an example of a simple substitution cipher:

A D
B V
C N
D X
E I
F K
G S
H W
I Y
J Z
K T
L Q
M M
N H
O P
P A
Q U
R F
S L
T G
U E
V O
W B
X C
Y R
Z J

To use this substitution cipher table to write a coded message, substitute each letter in the original message with the substitute letter from the table. For example, the message: [Read more…]

Division of Fractions – Davis & Pearn

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