165
There is no single answer to that, as it depends on what basis you are rounding on, like to the nearest 10 or the nearest 100 or the nearest 500 etc.
20 is already rounded to the nearest 10.
9.75 to the nearest whole number is 10.
10.3 to the nearest whole number is 10
495 is..
165
70
15
Depends on what you are rounding to.... The nearest 10 it would be 9995 for the smallest and 10004 for the largest. The nearest 100 it would be 9950 for the smallest and 10049 for the largest. The nearest 1000 it would be 9500 for the smallest and 10499 for the largest.
4500 if rounding to the nearest thousand.
There is no single answer to that, as it depends on what basis you are rounding on, like to the nearest 10 or the nearest 100 or the nearest 500 etc.
345 and 354
55 and 65 if rounding to the nearest 10. 59.5 and 60.5 is to the nearest unit.
It depends on the degree to which numbers are rounded. To the nearest 20, the smallest is 10 and the biggest is just under 30.
50
It is the target value less half the amount of rounding. If that sounds cryptic, try this example: Find the smallest number which, when rounded to the nearest 10 comes to 400. Target Value = 400 Amount of Rounding = 10 So the smallest value = 400 - 10/2 = 400 - 5 = 395. The smallest number rounded to the nearest 100, which comes to 400, is 400 - 100/2 = 400 - 50 = 350.