An infinite number.
800
the least number that round to 800000 is 750000 and the greatest number that round to 800000 is 849999.
750000 and 849999
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.
There are an infinite amount of numbers that round to 800. This is because of the infinite amount of decimals and also that you have different rounding values, like to the nearest 100 or the nearest 10 etc., that you could use.
The whole numbers between 700 and 800 are from 701 to 799. Those that begin with 8 are not included since they exceed 800. The numbers that end with 8 in this range are 708, 718, 728, 738, 748, 758, 768, 778, 788, and 798, totaling 10. Therefore, there are 10 whole numbers between 700 and 800 that end with 8, and none that begin with 8.
795The range of numbers that round to 800 when rounding to the nearest ten is 795 - 804
800
You can round up to 800 or round down to 790. There are good statistical reasons for rounding numbers ending in 5 in such a way that the previous digit is even. This would mean rounding up to 800.
800
800
Any number less than 800 is a value that falls below 800 on the number line. This includes whole numbers like 799, 500, or even negative numbers such as -1. In essence, any number from negative infinity up to, but not including, 800 is considered less than 800.