as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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create a math problem for children ages 7-9.
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here is a math problem for children ages 7-9: 

john had 5 apples and his friend had 8 apples. how many apples do they have together? 

answer: they have 13 apples together.
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