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Published byHerbert Ross Modified over 9 years ago
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Rounding Whole Numbers to the Nearest 10, 100, and 1,000
Objective: I can round numbers to the nearest 10, 100, and 1,000.
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Review Using a number line, round the following number to the nearest 10 and 100. rounded to the nearest 10 is ____________. rounded to the nearest 100 is ____________. 770 773 775 780 700 750 773 800
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How do I round whole numbers?
Step 1: Look at the place value you are being asked to round. Underline that number. Example: Round to the nearest hundred Step 2: Circle the digit to the right of the place value you are bring asked to round to. Example:
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How do I round whole numbers?
Step 3: Now look at the digit that is circled. If the digit is 0, 1, 2, 3, or 4 then leave the underlined digit the same. If the circled number is 5, 6, 7, 8, or 9 then round the underlined digit up. Example: Since the circled digit is a 4, we would leave the underlined digit (6) the same. Step 4: Now turn all the digits to the right of the underlined digit into zeros. Example: 600 HINT TO REMEMBER: *5 and above give it a shove, 4 and below let it go*
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Try rounding to the nearest 1,000
Using the same steps, round the following number to the nearest 1,000: 2, The answer is 3, 000 MOVE TO FIND THE ANSWER!
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Guided Practice Directions: Round each number to the nearest ten, hundred and thousand. TEN HUNDRED THOUSAND 2, ____________ ____________ ______________ 4, ____________ ____________ _______________
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Student Practice Directions: Round the following numbers to the nearest thousand. Do your work on the left side of the interactive notebook. 5, 769 2, 340 275, 923 27, 945 Bonus: Round these numbers to the nearest ten thousand. 125, 019 174, 999 668, 231
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