"Roused" is not a mathematical term. 248 ROUNDED to the nearest hundred is 200.
250
250
247.68 years rounded to the nearest whole number is 248
200
250
60
It is then 740 when rounded to the nearest ten.
36184 rounded to the nearest ten thousand is 40000. Rounded to the nearest thousand is 36000.
6512162 rounded to the nearest ten is 6512160.
320
2602 rounded to the nearest ten is 2600.