Khan Academy
Rounding Whole Numbers 2
This is the second in a series of 3 Khan Academy videos on rounding whole numbers. Students watch Sal Khan round the number 423,275 to the nearest thousand by looking to the number in the hundreds place. If it is 5 or higher, you round...
Khan Academy
Rounding Whole Numbers 1
Rounding is an important skill which must be used throughout the study of mathematics. This Khan Academy video is the first in a series of 3. It shows how to round the number 24,259 to the nearest hundred, using a number line.
Krista King Math
Rounding Decimals
Demonstrate the concept of rounding decimals through video instruction. The instructor shows examples of rounding to both the tenths and hundredths places.
Khan Academy
Rounding Whole Numbers 3
Sal Khan completes the 3-part rounding series with this Khan Academy video on rounding to the nearest 10. He references the actions taken in video 2, so students would be best served if all three videos where shown in sequence.
Curated OER
How Do You Round a Decimal to a Given Place Value?
Rounding numbers is an essential skill to have for all math classes. Sometimes those decimal numbers are just too big, and sometimes an answer should only be given out to the hundredths (like money). So watch this video to see the rules...
Khan Academy
Writing a Number in Expanded Form
Understanding place value is a basic mathematics skill. This Khan Academy video shows students how to write the number 14,897 in the expanded form. He explains that the 7 in the ones place is the same as 7x1, the 9 in the tens place is...
Curated OER
What is Place Value?
The teacher names and explains place value. She starts at the ones and moving left of the decimal goes to a million. Then moving right of the decimal she names and explains tenths to thousandths.
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