Free Number Game

Use the available numbers to calculate the target number.

Game rules

• Use the available numbers to calculate the target number.
• This is similar to the "Letters and Numbers" game as shown on SBS Television.

Rules of arithmetic

These are the rules of arithmetic that apply to this game. Search on "rules of arithmetic" for more information if required.

The priority of operations are
1. Brackets are calculated first eg. ( 5 + 3 ) x 2 = 8 x 2 = 16. Brackets can be nested and then brackets are calculated from inside to outside eg. ( 5 x ( 6 / 3 ) ) = ( 5 x 2 ) = 10.
2. Multiplication and division are calculated before addition and subtraction eg. 6 + 3 x 4 = 6 + 12 = 18.
3. Addition and subtraction are calculated last.
4. Calculations proceed from left to right if the other priorities do not apply eg. 6 x 10 / 5 = 60 / 5 = 12.

History

• 4-Nov-2022   v1.10   User can set numbers and target, update colours
• 12-Oct-2022   v1.01   Added solve button. Solver code by Christopher G. Jennings is used for calculating the solution.
• 27-Feb-2022   v1.00   Completed game
  - Undo last number/symbol
  - Division must result in whole number
  - Add calculated lines
  - Add button for new set of numbers
  - Improve calculated result when formula incomplete
  - Add options pop-up, extra numbers
  - Review layout and graphics
  - Success graphic
• 22-Jan-2022   v0.91   Prototype, improved formatting and layout
• 19-Jan-2022   v0.90   Prototype, working game to staging site

Origin of the game

This original game was created by by Armand Jammot in the 1960s for French television. It tests the numeracy skills and vocabulary of two contestants. This is similar to the "Letters and Numbers" game as shown on SBS Television.

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