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beginner 5-8 free Web Arithmetic

Subtraction - Crystal Crash

Subtraction - Crystal Crash

Play inside MathsAIOpen separately

If the game is blocked by browser policy, use the separate-window link.

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.

About this game

Subtraction - Crystal Crash is a free HTML5 maths game from MathsFrame. 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.

Classroom use

  • Use the game as a short warm-up, independent practice station, or end-of-lesson challenge.
  • Ask the learner to explain one answer after each round instead of focusing only on speed.
  • Choose the level inside the game that matches the learner’s current objective.

Source and play

Open the original MathsFrame game

The embedded player below loads the original game page. If the embedded player is blocked by a browser or network policy, use the original-game link above.