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Jack had 47 toy cars in his collection, but he gave 23 of them to his friend. How many toy cars does Jack have now?
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There are 62 apples on the tree, but 28 of them have already been picked. How many apples are still on the tree?
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A pack of 54 crayons had 32 blue crayons. How many non-blue crayons were there in the pack?
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The school library had 89 books on the shelf, but 42 of them were checked out. How many books are still on the shelf?
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A pizza restaurant sold 76 pizzas on Saturday and 34 pizzas on Sunday. How many pizzas did the restaurant sell over the weekend?