How do you round to the nearest whole number?

Answer 1

A whole number is anything that isn't part of something. Fractions and decimals aren't whole numbers. You round them by this simple statement; If it is half or more you round up (1/2 = round up. 3/8 = round down) if not you round down. See these examples if your having trouble understanding.

10.6 (round up) =11

8 1/3 (round down) = 8

1.4 (round down) = 1

5 5/8 (round up) = 6

REMEMBER: half or greater; you round up. Less than half; you round down.

If the last decimal is between 1 and 4, you round down. E.g. 1,3 = 1

If the last decimal is between 5 and 9, you round up. E.g. 1,7 = 2

As a child i was taught a simple rhyme. Four or below, let it go (round down, meaning drop the decimal.) Five and above, give it a shove (round up, meaning drop the decimal and add one to the main number)
-- Any proper fraction less than 1/2 rounds to zero.

-- Any proper fraction of 1/2 or more rounds to ' 1 '.

-- Any improper fraction should be changed to a mixed number first.

Its fractional part can then be rounded as explained above.
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.