6.735 is a perfect example.
You need to know what the value is. If the number is 67 and a bit then 67.3 If the number is 673 millionths, then 0.000673
It is 4.
8(6741)3= 8(7654)3 the digits between 8,3 are 4. 6(7)4=6(5)4 so the answer is four (8,3&6,4)
To round the number 673,807.3865 to the nearest one, we look at the digit in the one's place, which is 7. Since 7 is greater than or equal to 5, we round up. Therefore, the number rounded to the nearest one is 673,807.
673 rounded to the nearest ten is 670.