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Rounding Numbers

How To Round Numbers

Tavian Nelson

on 21 February 2013

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Transcript of Rounding Numbers

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli Rounding Numbers Rounding Numbers What is 128 rounded to the nearest ten? The answer is c.130 Rounding to the nearest 100 What is 232 rounded to the nearest 100? . Video Enjoy the video
of rounding numbers You can use a number line to round numbers. Rounding to the nearest ten A. 100
B. 120
C. 130
D. 110 128 rounds to 130 because the 8 in the ones place is greater than 5, so you round the underlined digit up to 3. A. 300
B. 200
C. 230
D. 330 to round you underline the digit you are rounding to and circle the digit to its right 10 256 Example: Underline the digit you are rounding to and circle the digit to its right (The boss). If the circled digit is less than 5 leave the underlined digit the same. If the circled digit is 5 or more round the underlined digit up. 20 30 40 50 Did you enjoy the video The answer is 200 because the 3 in the tens place is less than 5 so the underlined digit stays the same. 256 rounds to 300
because the BOSS is
5, so the 2 rounds up
to 3. 17 232 200 rounds to Example: If you have the number 17 and you wanted to round it to the nearest 10 you would underline the 1 and circle the 7 (THE BOSS). The 7 is greater than 5 so you change the 1 to a 2 and
the 7 turns into a 0. So 17 rounds to
20 and you can figure it out on the number line by looking to see what number it is closer to.
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