Nightingale Prep

Verbal Reasoning: Word Codes

01. If FISH = GJTI, what does GJOF decode to?
02. Using the same code, encode the word BIRD.
03. If 3, 1, 20 = CAT, what word does 4, 15, 7 represent?
04. What is the code for HOUSE if LIGHT = NLJMY?
05. Decode EVFSZ using the reverse alphabet code (A=Z, B=Y...).
06. If ABCD = 2468, what number represents...
+ 16 more questions
Verbal Reasoning

Word Codes

22 exam-style word code questions progressing across three difficulty tiers — from simple letter-shift codes through number-letter substitution to multi-step encoding challenges. Includes a full answer key with working. One of the highest-scoring question types in 11-Plus verbal reasoning tests.

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GL Assessment aligned
CEM curriculum
Full answer key
A4 printable

Three tiers that mirror the real exam

Word codes questions follow a predictable structure in real 11-Plus papers. This worksheet builds mastery progressively — simple substitution codes first, then number-letter systems, then the multi-step challenges that trip up even well-prepared children.

Section A

Letter Shift Codes

Single-step alphabetic substitution codes. Decode and encode using consistent shift rules. The foundation of all word code questions.

8 questions · 1 mark each
Section B

Number & Mixed Codes

Number-to-letter substitution, reverse alphabet codes, and alternating shift patterns. Tests systematic thinking under timed conditions.

8 questions · 1 mark each
Section C

Multi-Step Challenges

Two-step encoding rules, position-dependent codes, and cipher tables. The complex questions that appear in the hardest selective school papers.

6 questions · 2 marks each

Full Answer Key with Working

Every answer shown with full working so children can see exactly where they went wrong and learn the correct method.

Print Unlimited Copies

One purchase, unlimited prints. Practice until the code-breaking process is automatic — speed matters in the real exam.

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Exam Aligned

Question types drawn directly from GL Assessment and CEM verbal reasoning paper formats used by leading selective schools.

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VR: Word Codes
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