A laboratory technician needs to determine the temperature range of a specialized freezer. The high temperature was 8 degrees Celsius and the low was -15 degrees Celsius. To find the difference, the technician sets up the expression 8 - (-15). Which of the following shows the correct application of the rule for subtracting a negative integer?

A logistics coordinator is calculating the temperature change for a shipment of sensitive pharmaceuticals. The starting temperature in the loading dock was 12 degrees Celsius, and the final temperature in the refrigerated truck was -8 degrees Celsius. To find the difference, the coordinator sets up the expression 12 - (-8). According to the rule for subtracting a negative integer, this expression is equivalent to 12 + ____.

In a climate-controlled pharmaceutical facility, a technician records an external temperature of 15 degrees Celsius and an internal cryogenic storage temperature of -40 degrees Celsius. To calculate the difference, the technician writes the expression 15 - (-40). According to the rules of integer subtraction, this expression is equivalent to 15 + 40.

A logistics coordinator is analyzing the temperature fluctuations in a refrigerated truck carrying sensitive cargo. The internal temperature started at 14°C and dropped to -6°C by the end of the shift. To calculate the total temperature range (difference) using the rules of integer subtraction, arrange the following steps in the correct order.

A cold-chain logistics coordinator is training a new technician on how to record temperature changes in a shipment log. To calculate the total difference between a positive starting temperature and a negative final temperature, the technician must apply the rule for subtracting a negative integer ($a - (-b) = a + b$). Match each professional scenario with the equivalent addition expression that simplifies the calculation.

Documenting Temperature Difference Procedures

Cold-Chain Logistics: Temperature Range Verification

A food safety inspector is calculating the total temperature change for a shipment that moved from a loading dock (14°C) to a deep-freeze unit (-16°C). To calculate the difference using the expression 14 - (-16), the inspector must recall that subtracting a negative integer is mathematically the same as:

Finding the Anchorage Temperature Difference

Finding the Denver Temperature Difference

A laboratory technician is recording the results of a thermal stress test where a sample's temperature moved from 15°C to -5°C. To find the total change, the technician writes the expression $15 - (-5)$. Which mathematical phrase does this expression correctly translate?