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Which of the following is a real-world problem that could be solved with the sum −22+9?(1 point)

Responses

Quinn is playing a card game with his friends. He had −22 points at the start of his turn, but just got 9 points. How many points does he now have?
Quinn is playing a card game with his friends. He had negative 22 points at the start of his turn, but just got 9 points. How many points does he now have?

A scuba diver is 22 feet below sea level. Their friend is standing on a diving board 9 feet above sea level. What is the vertical distance between the scuba diver and their friend?
A scuba diver is 22 feet below sea level. Their friend is standing on a diving board 9 feet above sea level. What is the vertical distance between the scuba diver and their friend?

The temperature was −22°F yesterday. Today the temperature is 9°F. How much warmer is it today compared with yesterday?
The temperature was negative 22 degrees F yesterday. Today the temperature is 9 degrees F. How much warmer is it today compared with yesterday?

Layla earned $22 babysitting last weekend. Today she received $9 from her grandmother. How much money does she have all together?
Layla earned $22 babysitting last weekend. Today she received $9 from her grandmother. How much money does she have all together?

1 answer

The first three responses involve the sum \(-22 + 9\) and are related to situations where a negative value represents a deficit or a loss, while the last response involves only positive numbers.

The best real-world problem that could be solved with the sum \(-22 + 9\) is either of the following:

  1. Quinn is playing a card game with his friends. He had -22 points at the start of his turn, but just got 9 points. How many points does he now have?

  2. The temperature was −22°F yesterday. Today the temperature is 9°F. How much warmer is it today compared with yesterday?

Both of these options directly involve the calculation of a negative value being increased by a positive value.

So, the first option about Quinn's points or the temperature situation are both appropriate interpretations of the problem represented by \(-22 + 9\).

However, if you need to select one, either of the two first ones would suffice.