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Letter Code Practice 1

In this practice exercise, students will turn words into code and turn coded words back into their original words. This will develop their encoding and problem solving skills.

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'Letter Code Practice 1' worksheet

Key stage:  KS 2

Curriculum topic:   Exam-Style Questions: Verbal Reasoning

Curriculum subtopic:   Exam-Style Questions: Letter Code Breaking

Difficulty level:  

Worksheet Overview

The following activity is a practice exercise to help you measure your success under timed conditions.

If you are unsure of an answer, move on to the next question.

You should come back to questions you found difficult at the end if you have time.

 

There are several different types of codes.

For example: when you turn a word into code, each letter can be represented by a different letter.

 

Below is the alphabet for you to use as a reference:

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


Let’s look at a question:

If the code for TRAIN is SQZHM, what is the code for RHYME?

 

First, we need to use the alphabet line to see how the letters are changing.

If we look at how T becomes S, we can see that the letters are all jumping one place backwards in the alphabet. This same pattern applies for the other letters in the word TRAIN.

 

If we apply the same rule to the word RHYME, we discover that the coded version of the word is QGXLD.

Sometimes, we have to work backwards from a given code, for example:

If SJWFS is the code for RIVERQFBDI is the code for ____.

 

First, we need to work out how the coded word becomes the word RIVER when it is decoded.

All of the letters jump back one place in the alphabet.

So we must do the same for QFBDI.

If we do this, we find that the missing word is PEACH

 

Now it's time to begin this practice exercise.

Good luck!

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