First, we have to know to what place 6,172,438 is being rounded. If it is rounded to the nearest hundred, it would be 6,172,440. If it is rounded to the nearest thousand, it would be 6,173,000. And so forth.
The answer depends on the extent of rounding. For example, to the nearest whole number, it is 6172438 while to the nearest billion, it is 0.
6172000
It rounds to 6,172,000
The answer is 6,170,000
To the nearest thousand: 6,172,000 To the nearest ten thousand: 6,170,000
thousand: 6,172,000 ten thousand:6,170,000
38 is closer to 0 than 100, so round down. 6172400
Rounded to the nearest hundred it is: 32,800
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
670 rounded to the nearest hundred is 700. 670 rounded to the nearest hundred is 1000.