This interactive simulation lets students play a strategic two-player number card game where players take turns adding and subtracting values to reach a target sum. The game combines arithmetic skills with tactical thinking: win by ensuring the final sum is a multiple of 3, or force your opponent into a losing position. Explore how mathematical patterns and strategic planning determine game outcomes.
Learning objectives: Develop fluency with addition and subtraction while recognising number patterns and multiples | Apply strategic thinking and forward planning in competitive mathematical scenarios | Understand how game rules create winning and losing positions through mathematical analysis
Human 1 vs Human Player 2 : Sum and Subtract Number Card Game. To win the remaining sum is a multiple of 3, then the last player to move wins; otherwise, the other player wins
Shaun Quek; Loo Kang Wee; based on idea by Theresa Heng; Ryan
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