Show that addition of two numbers can be done in any order (commutative) and subtraction of one number from another cannot

Show that addition of two numbers can be done in any order (commutative) and subtraction of one number from another cannot

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  Inverse Operations - Addition and Subtraction

  I designed this resource to help children to visualise the relationship between addition and subtraction. They can then use this relationship to solve missing number problems. There are a wide range of levels, from adding within 20 to using a calculator to add and subtract 5 digit numbers and decimals.

  Game availability:

  • Online in HTML5 format

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  Inverse Operations - Addition and Subtraction ?
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  Addition - Crystal Crash

  A fun game to practise mental addition skills. The game was designed to cover all the mental addition objectives in the new math curriculum. You can choose one objective, or choose all the objectives for a year group. 

  This game will work on any device in your browser.

  Game availability:

  • Online in HTML5 format

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  Addition - Crystal Crash ?
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  Subtraction - Crystal Crash

  The game was designed to cover all the mental subtraction objectives in the new maths curriculum. You can choose one objective, or choose all the objectives for a year group. 

  This game will work on any tablet or computer.

  Game availability:

  • Online in HTML5 format

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  Subtraction - Crystal Crash ?
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  Maths Race - Subtraction

  This game was designed to cover all the mental subtraction objectives in the new maths curriculum. You can choose one objective, or choose all the objectives for a year group. 

  Game availability:

  • Online in HTML5 format

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  Maths Race - Subtraction ?
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  Tommy's Trek - Addition

  A fun platformer game that helps develop addition skills. Lots of choice over level. This game will work on any device.

  Use the arrow keys to move Tommy. The ctrl key makes him jump and the up arrow selects a number.

   

  Game availability:

  • Online in HTML5 format

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  Tommy's Trek - Addition ?
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  Archery Arithmetic - Subtraction

  Game availability:

  • Online in HTML5 format

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  Archery Arithmetic - Subtraction ?
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  Marlon's Magical Maths Mission - Addition

  Game availability:

  • Online in HTML5 format

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  Marlon's Magical Maths Mission - Addition ?
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  Maths Fishing - Subtraction

  Game availability:

  • Online in HTML5 format

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  Maths Fishing - Subtraction ?
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  Archery Arithmetic - Addition

   

   

  Game availability:

  • Online in HTML5 format

  Close
  Archery Arithmetic - Addition ?
• ×

  Marlon's Magical Maths Mission - Subtraction

  Game availability:

  • Online in HTML5 format

  Close
  Marlon's Magical Maths Mission - Subtraction ?
• ×

  Maths Fishing - Addition

  Game availability:

  • Online in HTML5 format

  Close
  Maths Fishing - Addition ?