Compare two twodigit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
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Ages: 3  6
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Learn how to use the words more, fewer and same to describe two sets of pictures. Students will also learn how to match an object from one group to the other group to determine which group has more, fewer or are the same number. User clicks through... the slides.
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May 14, 2010 at 12:30 PM


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Ages: 7  11
5488 Views:

Mr. Khan uses a number line to show how to round to the nearest TEN using a fourdigit number. Sal Khan was the recipient of the 2009 Microsoft Tech Award in Education. (01:28)
July 30, 2010 at 03:37 PM


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Ages: 6  11
7429 Views:

This video shows how to use the greater than and less than math symbols between two numbers. The video also shows how to verbally say the comparison using words and shows how to use symbols. (07:50)
November 16, 2009 at 09:56 PM


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Ages: 4  7
6623 Views:

Learn how to compare sets of objects in one group to objects in another group to determine which group has more, fewer or the same amount. User clicks through the slides.
May 14, 2010 at 01:11 PM


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Ages: 9  12
10876 Views:

Math With Larry presents an interactive white board lesson on rounding. Larry quickly reviews place value and then shares the rounding rules. Teacher encourages students to highlight or underline the digit the student is rounding to decrease confusi...on. The teacher tells students why rounding is an important skills and how to use it. (03:44)
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January 25, 2010 at 03:16 PM


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Ages: 8  12
5795 Views:

One way to estimate is by rounding a number. Rounding is a great way to make numbers easier to work with. Numbers are often rounded to the nearest ten, hundred, or thousand. Learn more about estimation and rounding with this stepbystep, interact...ive video from StudyJams. A short, selfchecking quiz is also included with this link.
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June 9, 2011 at 07:25 PM


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Ages: 5  8
4082 Views:

One and twodigit numbers are compared in this video using the <, >, and = symbols. The numbers are represented with pictures and in numerical form. ( 2:15)
July 21, 2011 at 06:34 PM


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Ages: 5  10
3967 Views:

In this threeminute video, Sal Khan subtracts 42 from 68. Mr. Khan, of Khan Academy, uses computer software (and different colors) for demonstration.
July 18, 2011 at 06:14 PM


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Ages: 8  12
2514 Views:

Lesson on greater than and less than. Larry explains which of two numbers is greater. He shows examples with a number line and explains the symbols and how place value works. More lessons at: http://www.MathWithLarry.com
May 5, 2010 at 10:32 PM
