# Work Out Which Two Letters Two Letters Come Next

In this worksheet, students will work out the next two letters in an alphabetic sequence. This will develop students’ problem solving and code-breaking skills.

Key stage:  KS 2

Curriculum topic:   Verbal Reasoning

Curriculum subtopic:   Letter Sequences

Difficulty level:

#### Worksheet Overview

Hello, letter detective, time for another puzzle. Can you help us to solve the challenge below?

We are going to look at the alphabet in a different way to normal.

In this activity, you will be working out sequences that use letters of the alphabet. Some will be in alphabetical order, whilst others will be in reverse alphabetical order.

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

Take a look at the following alphabetic sequence:
AC, DG, HL, _

What are the next two letters in the sequence?

First, put your fingers on the letters A and C on the alphabet line above.
Then move them to D and G.
Then move them to H and L.

What do you notice?

The pattern is that the gap between each pair of letters widens by one each time like this: A_C, D_ _G, H_ _ _L etc.

If we apply this pattern then we get MR.

So the sequence would be: AC, DG, HL, MR, etc…

How did you get on?

 Pssstt! Here's a handy hint to help you reach superstar status: Don't forget to use the letter line to help you work out the jumping pattern.

In this activity, you will be a sequence superstar and work out which two letters come next.

Good luck, letter sequencer!

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