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There is no underlined digit. If there was it would be that digit multiplied by 10n-1 where n is the number of the digit as counted from the right hand end, starting at 1.
When rounding to a specific place, take a look at the digit immediately to the right of the target. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.
688.3
The digit immediately to the right of your target.
Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out.
There is no underlined digit. If there was it would be that digit multiplied by 10n-1 where n is the number of the digit as counted from the right hand end, starting at 1.
-- If the digit to the right of the underlined one is 4 or less, then discard everything to the right of the underlined one. -- If the digit to the right of the underlined one is 5 or more, then add ' 1 ' to the underlined digit, and discard everything to the right of it.
-- Look at the digit that is underlined. Stare at it. Fix it in your mind's eye. Be sure you know clearly which digit it is, and don't forget it. -- Now look at the digit to the right of it. Is that one a ' 5 ' or more ? . . . . . If the digit is a ' 5 ' or more, then increase the underlined digit by ' 1 '. . . . . . If the digit is less than a ' 5 ', then do nothing, and go on to the next step. -- Now, change all digits to the right of the underlined one to ' zero '. -- The assignment is complete.
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None of the digits are underlined. If one of them was underlined, the answers would be (from left to right) 600, 580, 582, 582.1, 582.09 and 582.091 respectively.
When rounding to a specific place, take a look at the digit immediately to the right of the target. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.
If you are rounding to the 9 on the right, the number stays the way it is. If you are rounding to the 9 on the left, it rounds to 489000000
688.3
The digit immediately to the right of your target.
Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out.
The digit immediately to the right of the one you are rounding to.
The cents place is the 2nd digit to the right of the decimal point. Look at the number to the right of that number [2029.494]. If that number is 0-4, then the cents digit does not change; drop everything to the right of the cents digit. If that number is 5-9, then drop everything to the right of the cents digit and add 1 cent to the whole number.Since it is a 4, the cents digit does not change, and the answer is 2029.49