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Instructions: Use the arrow keys (or swipe) to move the tiles. When two tiles with the same number touch, they merge into one tile to make a double. What is the largest double you can make?

Trophies are available for creating tiles of the following values:

128 - Level 1 trophy
256 - Level 2 trophy
512 - Level 3 trophy
1024 - Level 4 trophy
2048 - Level 5 trophy

# Double Take

Learn the powers of two up to 2048!

#### Suko Sujiko

Interactive number-based logic puzzles similar to those featuring in daily newspapers designed to develop numeracy skills. These puzzles are drag and drop and can earn you a Transum Trophy.

Learning the sequence of doubling numbers (powers of two) is a worthwhile pursuit for children of all ages. This game is lots of fun to play, does not require the player to already know the doubling sequence, but presents the numbers in context and in a way that will help the child learn and recognise them.

Play the game little and often! Do not spend hours and hours playing but do spend ten minutes every day working to improve your score. Your personal best score is shown at the top right of the screen and this provides a target for you to try and beat. Earn trophies as you achieve the high score tiles.

Enjoy playing the game and learning more mathematics as you do.

Comment recorded on the 9 October 'Starter of the Day' page by Mr Jones, Wales:

"I think that having a starter of the day helps improve maths in general. My pupils say they love them!!!"

Comment recorded on the 9 April 'Starter of the Day' page by Jan, South Canterbury:

"Thank you for sharing such a great resource. I was about to try and get together a bank of starters but time is always required elsewhere, so thank you."

#### Take Baht

How many different ways can you make a given total with Thai coins? So far this activity has been accessed 6763 times and 141 people have earned a Transum Trophy for completing it.

This game is adapted from code created by Gabriele Cirulli based on 1024 by Veewo Studio and conceptually similar to Threes by Asher Vollmer. The details of the copyright notice can be seen here.

In the video below Steve Mould and James Grime discuss 2048 strategy and Maths.

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

 Level 1 Level 2 Level 3 Level 4 Level 5

Bar chart showing the number of trophies earned claimed for each level

#### Number Crunch Saga

A lively numeracy game requiring you to align three numbers to create the given target sum or product.

Transum.org/go/?to=saga

#### Remainder Race

A game involving chance and choice requiring an ability to calculate remainders.

Transum.org/go/?to=remainder

#### Sum Game

A game against the clock to find the numbers which add up to the target number.

Transum.org/go/?to=sumgame

#### Discombobulated

A fun game requiring you to find numbers which add up to the target number as quickly as possible.