Answer:
The estimated days in a year when it is not foggy = 110 days
The exact days in a year when it is not foggy = 109 days
Explanation:
Solve the problem by using addition, subtraction, multiplication, or division. First use front end rounding to estimate the answer. Then find the exact answer. The foggiest place in a certain country is City A. How many days is it not foggy each year?
The number of days in a year = 365 days
It is foggy there an average of 256days each year.
Find the estimated number of days when it is not foggy =
We round up the numbers
365 days to the nearest tens
= 370 days
256 days to the nearest tens
= 260 days
Hence:370 - 260 days
= 110 days
The exact number of days when it is not foggy =
= 365 − 256
= 109