800.
800
Half of 10 is 5.So numbers in the range 800 ± 5 round to 800 to the nearest 10, except that numbers exactly half way round up. Thus all numbers greater than or equal to 800 - 5 round up to 800 and all numbers less than 800 + 5 round down to 800,That is all numbers greater than or equal to 795 and less than 805 will round to 800 to the nearest 10.
round 805 to the nearest hundredth
Yes.
800
800
It is 800.
800
800.
800
800
As the digit in the tens position is a 3, we round down to give 800.
It is 800 to the nearest hundred.
800
800
800