Hannah brought $30 to the county fair. She spent half of it on rides and another $5 on dessert. How much, in dollars, is left? Give me reasons, before answering the question
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She spent $30 / 2 = $15 on rides. She spent a total of $15 + $5 = $20 including dessert. She has $30 - $20 = $10 left. So the final answer is 10.
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