Subtracting None and Subtracting All

Sam and Stella plan to study together, with Sam bringing plums for both. Sam gives more plums to Stella, demonstrating generosity. The video uses this scenario to teach subtraction, showing that subtracting zero from a number leaves it unchanged, while subtracting a number from itself results in zero. Sam eats all his plums and then Stella's, leading to a lesson on asking before taking others' things. The video concludes with Sam's punishment and a moral lesson.

How many plums are left for Stella after Sam ate them?

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What is the result of subtracting a number from itself?

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What lesson should Sam learn from taking Stella's plums?

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