11+ Alphabet Series and Codes Practice
Crack letter substitution ciphers and predict sequential letter progressions using position shifts in the alphabet.
Untimed Alphabet Series & Codes Test
Practise systematically without the pressure of a timer. 7 questions drawn randomly from the 20-question bank.
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4 min Timed Test
Sharpen speed and focus for 11+ test day. 7 questions in 4 min.
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Techniques and Exam Habits
Key rules and methods to solve Alphabet Series & Codes quickly and accurately.
Rule 1: Always reference the A-Z alphabet grid
Write down or reference the complete 26-letter alphabet. Count forward or backward step-by-step rather than guessing letters in your head.
Rule 2: Check for wrapping around the ends (Z to A)
Many 11+ ciphers wrap continuously from Z to A (+1 from Z is A, −2 from B is Z). Verify if shifts are uniform or progressive (+1, +2, +3).
D (+2) → F, O (+2) → Q, G (+2) → I.
Answer: FQI.
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