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Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Mental Strategies Practise your mental arithmetic skills and learn some new strategies with this self marking exercise.
- Number Crunch Saga A lively numeracy game requiring you to align three numbers to create the given target sum or product.
- 23 or Bust A game involving mental arithmetic and strategy for two players or one player against the computer.
- Pairs Eleven Find pairs of playing cards of the same suit which add up to eleven.
- Addle Arrange the numbers from 1 to 14 in the spaces to make the sums correct. How fast can you do it?
- Nine Digits Arrange the given digits to make three numbers such that two of them add up to the third.
- Beat The Clock It is a race against the clock to answer 30 mental arithmetic questions. There are nine levels to choose from.
- Just In Time Every 10 seconds a new calculation appears on the screen: A dynamic visual aid.
- Nine Nine Nine Use the digits 1 to 9 to make three 3 digit numbers which add up to 999.
- No Partner Find which numbers in a given list do not combine with other numbers on the list to make a given sum.
- Numbasics A daily workout strengthening your ability to do the basic mathematical operations efficiently.
- One Minute Maths A challenge to mentally add numbers together without making the classic place value mistakes.
- Partial Pyramids Calculate the missing numbers in these partly completed pyramid puzzles.
- Pyramid Puzzle Numbers in the bricks are found by adding the two bricks immediately below together. Can you achieve the given target?
- Stamp Sticking Drag stamps onto the envelopes to make the exact postage as shown at the top left of each envelope.
- Sum Game A game against the clock to find the numbers which add up to the target number.
- Digital Darts An online darts game for one or two players requiring skill, strategy and mental arithmetic.
- Triplets Find as many sets of three of the available numbers as possible which add up to the given total.

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

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