If we are rounding to the nearest thousand, a whole number wouldn't round to 900.
You would look to see if the 1s is greater than or equal to 5. If it is, then you would round up, if not, then round down. The rounded number is 900.* *The number cannot be rounded to a 10. It is rounded to a 100
250 to 349
900
7,500 is the least whole number that rounds to 8,000
850
When rounding to the nearest hundred, half will round down and half will round up, ie 100 ÷ 2 = 50 will round each way. → any number greater than or equal to 900 and less than 900 + 50 = 950 will round down to 900. ie any number n such than 900 ≤ n < 950 will round down to 900 to the nearest 100. Which means your [whole] number could be any of 900, 901, 902, ..., 949.
949
To round a number to the nearest 10, you select from the closest multiple of ten that's higher (900) and the closest that is lower (890). Whenever a number has units of 0,1,2,3,4 you round down, and whenever a number has units of 5,6,7,8,9 you round up. In this case, the units are 5, so you round up, meaning that 895 is 900 when rounded to the nearest 10.
the least number that round to 800000 is 750000 and the greatest number that round to 800000 is 849999.
We could have used that missing number. In general, the least whole number that will round to the nearest hundred is x50 of the previous one. 650 is the least whole number that will round to 700
round number of 2000000 to least and greatest number
450.00...001 to the nearest 900.
85
900
949
949