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Number Operations

Addition, Subtraction, Multiplication, Division

There are 6 videos in this category and 680 videos in 82 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 12 - 18
7166 Views:
Basic Math: Sieve of Eratosthenes
From YouTube, produced by VideoMathTutor.com
This lesson consists of showing you how to use the Sieve of Eratosthenes to find all prime numbers below a certain value. In this case, below 100. (05:50)
November 9, 2009 at 04:02 AM
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Not Right For WatchKnowLearn
Ages: 6 - 11
4649 Views:
Mental Math Strategies--Addition & Subtraction Relationship
From YouTube
In this video, Mr. Almeida explains how to use mental strategies to add and subtract within 20 using the relationship between addition and subtraction. This is one of the strategies suggested in the Common Core State Standards for Mathematics, 1.OA.6... [more]
April 21, 2012 at 09:49 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
1872 Views:
Operaciones Básicas con Números Reales (en Español)
From YouTube
En este video, el profesor habla sobre varias operaciones básicas. Empieza con el valor absoluto y sigue con la suma de enteros, resta de enteros, multiplicación de enteros, y la división de enteros. El video ofrece ejemplos de cada operacion. (10:17... [more]
February 4, 2012 at 04:45 PM
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Not Right For WatchKnowLearn
Ages: 6 - 12
1067 Views:
Mental Math Strategies --Make 10 Strategy
From YouTube, produced by youtube
In this video, Mr. Almeida explains how to use mental strategies to add within 20 using the "make 10" strategy. This is one of the strategies suggested in the Common Core State Standards for Mathematics, 1.OA.6 and 2.OA.2. With practice, this strateg... [more]
April 21, 2012 at 09:56 PM
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Not Right For WatchKnowLearn
Ages: 8 - 13
2227 Views:
Introduction to Word Problem Terms
From YouTube, produced by www.mathwithlarry.com
This is an introduction to basic word problem terms.  Larry discusses key words that are usually associated with a particular mathematical operation. Terms are shown for addition, subtraction, multiplication, and division.  (02:37)
May 5, 2010 at 08:43 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1278 Views:
Basic Math: Lesson 3 - Operations on Numbers -- Part 3
From YouTube, produced by VideoMathTutor.com
This lesson works through typical operations done on numbers: absolute value, grouping, opposites, addition, subtraction, multiplication, division and simple exponents. (30:36)
November 9, 2009 at 03:52 AM
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