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Applications of Adding Rational Numbers Quick Check
2 of 52 of 5 Items
Question
Which of the following is a real-world problem that could be solved with the sum −22+9
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Responses
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?
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?
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?
1 answer
The best real-world problem that fits the sum \(-22 + 9\) is:
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?
This scenario uses the calculation of \(−22 + 9\) to determine Quinn's total points after gaining the additional points.
The other options do not use the operation in the same way or do not reflect the specific addition of a negative and positive value as clearly as this example.
