Well, isn't that a happy little number we have here! If we want to round 690 to the nearest hundred, we look at the digit in the tens place. Since it's a 9, we know it's closer to 700. So, 690 rounded to the nearest hundred is 700. Just a little adjustment to make it feel right at home.
690
690
690
690
690
690
690.
690
690
690
The answer depends on the degree of rounding.To the nearest unit it is 538To the nearest 20 it is 540To the nearest 1000 it is 1000.
Rounded to the nearest ten, 691 becomes 690 as the last number is less than five.