When rounding off, the rule is, "If the first figure to be discarded is 5 or more then the previous figure is increased by 1.
Following this rule then 650 is the result of rounding off numbers in the range 645 to 654.
As 650 itself is not rounded off then there are 9 whole numbers that can be rounded to 650.
700
650
600
To the nearest 100, any number greater than or equal to 650 and less than 750 will round to 700. examples (whole numbers): 650, 651, 749, examples (decimals): 650.5, 749.5, 749.9, 749.999
650
650
650
39.665 (rounded)
640
650
Well, friend, there are 65 hundredths in 650. You see, when you have a whole number like 650, you can think of it as 650.00, which means there are 65 hundredths in total. Just imagine each hundredth as a tiny, happy little bird flying in the sky of numbers.
There are 1.609344 kilometres in one mile. Therefore, rounded to two decimal places, 650 kilometres is equal to 650/1.609344 = 403.89 miles.