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Rounding is used to simplify numbers. When rounding we are creating numbers that are approximate to their original value. The benefit to rounding is that it gives us numbers that are easier to work with. The downside to rounding is that the numbers will not always be exact. Example 1: We use rounding in our everyday lives.
Rounding Whole Numbers and Decimals. To round a whole number: Write the number to be rounded. Underline all the digits from the left through the place you are rounding to. Mark the digit just to the right of the last underlined digit.
Basic Arithmetic Skill Rounding Whole Numbers Round each to the place indicated. 1) 97,832,774 2) 66,331,340 3) 72 4) 175 5) 5,622,017,087 6) 63,996
The Rules for Rounding Whole Numbers. Identify the place of the digit to be rounded. Look at the digit to the right of that place. If that digit is 5 or greater, add 1 to the digit to be rounded, and replace all the digits to the right with zeros. If that digit is less than 5, do not change the digit to be rounded, and replace the all the ...
• Rounding a given number means to find another number close to the given number. • Numbers are rounded to make them easier to work with. • Estimation allows you to determine if an answer is reasonable.
Rounding Whole Numbers. Why round numbers? When exact numbers are not needed, numbers are often rounded to give approximate values and quantities. Rounding also helps us estimate. Temperature: Daily temperatures are often rounded to the nearest degree Celsius. E.g., 25.7°C is generally reported as 26°C . Money:
When rounding to the nearest 10 look at the units digit, when rounding to the nearest 100 look at the tens digit and when rounding to the nearest 1000 look at the hundreds digit, so 8364 rounds down to 8000.
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