Subtracting integers is a useful skill that can be applied in various real-world situations. Here are some examples:
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Budgeting: When managing finances or budgeting, you may need to subtract expenses from your income. For instance, if you have a monthly income of $3,000 and spend $1,500 on rent, you subtract to find out how much money you have left: \[ 3000 - 1500 = 1500 \] This means you have $1,500 remaining for other expenses.
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Temperature Changes: If the current temperature is 5°C and it drops to -3°C overnight, you can calculate the change in temperature by subtracting: \[ 5 - (-3) = 5 + 3 = 8 \] It gets colder by 8 degrees.
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Elevations: When hiking, if you start at an elevation of 2,000 feet and hike down to an elevation of 1,200 feet, you can find the change in elevation by subtracting: \[ 2000 - 1200 = 800 \] This indicates you descended 800 feet.
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Bank Accounts: If you have $500 in your bank account and you withdraw $150, you would subtract the amount withdrawn from your account balance: \[ 500 - 150 = 350 \] You will have $350 left in your account.
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Sports Scores: In a basketball game, if your team scores 80 points and the opposing team scores 95 points, you can find out how much your team lost by subtracting your score from the opponent’s: \[ 95 - 80 = 15 \] Your team lost by 15 points.
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Distance and Travel: If you have a journey of 120 miles and you have already traveled 45 miles, you can calculate how much distance you have left to travel: \[ 120 - 45 = 75 \] You still have 75 miles to reach your destination.
These examples illustrate how subtracting integers can help clarify situations involving financial decisions, temperature changes, elevations, scores, and distances in everyday life.
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