Letter-pair identification in a given word
medium
1 of 5 Lessons
Meaningful word formation from jumbled letters
medium
2 of 5 Lessons
Simple coding-decoding: Word to word substitution
medium
3 of 5 Lessons
Matrix coding and decryption methods for banks
medium
4 of 5 Lessons
Coding based on positional value of alphabets
medium
5 of 5 Lessons