The correct way to solve the problem is to add the initial temperature of –4°F to the increase of 11°F. The calculation is as follows:
–4 + 11 = 7
So, Rose's calculation is correct.
The answer is:
A. Yes. Rose is correct.
Read this word problem.
Overnight, the temperature in Mayville was
–4°F. But by the following afternoon, the temperature had risen 11°F. What was the temperature in Mayville that afternoon?
To solve the problem, Rose added –4+11 and came up with an answer of 7°F. Is Rose correct? Why or why not?
A. Yes. Rose is correct.
B. No. The answer should have been -7°F, not 7°F, because a negative plus a positive is always a negative.
C. No. The answer should have been 15°F, because the sum of the absolute values of -4 and 11 is 15.
1 answer