A decimal less than .5 rounds down to the nearest whole number. A decimal greater than .5 rounds up to the nearest whole number. A decimal of .5 depends on the country and application of use. In metric countries, like Canada, decimals of .5 are rounded to the nearest even number.
For example:
1.4 rounds to 1
12.6 rounds to 13
5.5 rounds to 6
4.5 rounds to 4
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To round a number to a certain place value, you look at the digit immediately to the right of that place value. If it is 5 or greater, you round up; if it is less than 5, you round down. For example, to round 3.785 to the nearest hundredth, you would look at the digit in the thousandths place (8), which is 5 or greater, so you round up to 3.79.
Currently it is not rounded to anything. You can round 14.5 to the nearest tens place. When you round it to the tens place you will get: 15. This is because the ".5" value in the decimal.
Round 12.7 to the nearest whole number would be 13. When rounding a number, you look at the digit immediately to the right of the place value you are rounding to. If that digit is 5 or greater, you round up; if it is less than 5, you round down. In this case, since the digit to the right of the tenths place is 7, which is 5 or greater, you round up to 13.
18.19
When rounding a decimal number to the nearest whole number, you look at the first decimal place. In this case, 16.8 has a decimal place value of 8. Since 8 is 5 or greater, you would round up to the next whole number. Therefore, 16.8 rounded to the nearest whole number is 17.