Solve application problems by subtracting integers

The high temperature in a city was 7°C, and the low temperature was -5°C. What was the difference between the high and low temperatures?

A diver is at 30 meters below sea level (-30m) and ascends to a position 12 meters below sea level (-12m). What is the total change in the diver's elevation?

A customer has a bank balance of -45 USD. After a deposit of 100 USD, they incur a fee (subtraction) of 15 USD. What is their final balance?

The highest peak in a region is 4,500 meters above sea level, and the deepest point in a nearby lake is 150 meters below sea level. What is the vertical distance between them?

An event occurred in 250 BC (-250) and another in 150 AD (150). How many years passed between these two events?

A industrial freezer was at -10°C. Due to a malfunction, the temperature dropped another 8°C. What is the new temperature?

You owe a friend 60 USD (-60). You pay back 25 USD, but then borrow another 10 USD. What is your current standing with your friend?

In golf, a player is 3 under par (-3) on the first 9 holes. On the next 9 holes, their score changes by -2. What is their final score relative to par?

A submarine at -200 feet dives another 150 feet. What is its new depth?

A stock starts the day at a value change of +4 USD. By noon it has dropped 9 USD. What is the total change for the day?