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Clark has 20 trading cards and he buy (p) trading cards from the store . He gave his friend Jenny (k) trading cards as a gift for her birthday. Write an expression to show the total number of trading cards Clark has left

Respuesta :

Initially, Clark has 20 trading cards

He buys (p) trading cards, then now he has 20 + p cards

After he gave k cards to Jenny, he has 20 + p - k cards left

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