7200
Anything from 755 to 764
There is no such number. If you were rounding to the nearest hundred thousand, you would not end up with 157000. 157000 to the nearest hundred thousand is 200000.
The least number that rounds to 6500 when rounded to the nearest hundred is 6450. When rounding a number to the nearest hundred, you look at the digit in the tens place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, 6450 rounds up to 6500 when rounded to the nearest hundred.
The number 693 rounded to the nearest hundred is 700
7200
7550 is the smallest number than rounds to 7600 when rounded to the nearest hundred.
The lowest number that rounds to 700 to the nearest hundred would be 650.
The number 370.14 rounds up to 400 to the nearest hundred.
8600
Half of 100 is 50, so the smallest number that rounds to 400 to the the nearest hundred is 400 - 50 = 350.
3200
Anything from 755 to 764
200
749
849 is the highest number that rounds to 800.
9000.0499...