Subtracting integers in real-world situations can be understood through various practical examples. Here’s a summary of how integer subtraction is applied:
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Financial Transactions: When managing finances, subtracting integers helps in tracking expenses. For instance, if you have $100 and spend $35, you subtract 35 from 100 to find your remaining balance: $100 - $35 = $65.
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Temperature Changes: In weather contexts, if the temperature rises from -5°C to 3°C, you can subtract the initial temperature from the final temperature to find the change: 3 - (-5) = 3 + 5 = 8°C increase.
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Elevation Changes: When discussing elevation, such as going from 200 meters above sea level to 50 meters above sea level, the subtraction involves: 200 - 50 = 150 meters descent.
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Sports Scores: In sports, if a team has a score of 80 points but loses 15 points due to penalties, subtracting gives the adjusted score: 80 - 15 = 65 points.
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Inventory Management: In a stockroom, if you start with 150 units of a product and sell 40, you subtract to find the remaining stock: 150 - 40 = 110 units.
In all these examples, subtracting integers helps quantify changes, manage resources, and track progress in various aspects of daily life.