Rounding Decimal Numbers Part 1
Recall the place value chart. The number 12.35 can be written in the place value chart as follows:
Steps for rounding decimals:
To round the decimal number to a given place, locate the rounding digit (which is the digit at the place you are rounding to). Then, check the digit immediately to its right.
- If this digit is 5 or more, then add 1 to the rounding digit (this is called rounding up) and remove all the digits to its right.
- If this digit is less than 5, then keep the rounding digit the same (this is called rounding down) and remove all the digits to its right.
For example: To round the number 70.17 to the nearest tenths, look at its hundredths place digit.
It is 7, which is greater than 5. So, we round up.
70.17 → 70.2
So, 70.17 rounded to the nearest tenth is 70.2.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.