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| Name | 4th Grade Math 13.3, Area of Combined Rectangles |
| Video Uploader | Video From JoAnn's School |
| Upload Date | This Video Uploaded At 22-01-2020 12:48:43 |
| Video Discription | Combined rectangles are rectangles that are next to each other. They might not show all the sides of all the rectangles, but we can pencil them in to find area. If the combined rectangles are drawn on grid paper, we can count the number of unit squares inside the shape. We can also split the shape into separate rectangles, count the unit squares of each rectangle, then add them to get a total area. We can use the Area formula, A=bXh, area is equal to base times height. We can divide the combined rectangles in different ways to find the total area. Dividing them into the fewest number of rectangles will help us go quicker, and do less work. The Commutative Property of Multiplication states that we can multiply in any order and we'll get the same product. So, we can use any side for the base and any side for the height. The Commutative Property of Addition states that we can add in any order and we'll get the same sum. So, we can add the areas of the rectangles in any order to get a total area. We can use addition or subtraction to find area. Using addition, we find the area as several rectangles and add their areas to get a total. Using subtraction, we multiply the longest base by the longest height, as one great rectangle. Then, we find the area of the missing space and subtract that area from the great rectangle. Remember, we can use length times width or base times height to find the area of a rectangle, and we can use any side as the base. 4th Grade Math 13.1, Perimeter of Rectangles, or Squares https://youtu.be/vMB58TaUy_A 4th Grade Math 13.2, Area of Rectangles and Squares https://youtu.be/ljM0vP5j2Ks 4th Grade Math Playlist https://www.youtube.com/playlist?list=PLKi4WTp6PRGX7RhcxctRibNb7V091JZfn I'm using the Houghton Mifflin Go Math! 2015 copyright textbook for this playlist. You can practice online using the textbook's website https://www.gomathacademy.com/ YouTube rating for JoAnn's School videos: L0 - No strong language N0 - No nudity S0 - No sexual situations V0 - Not violent or disturbing D0 - No drug reference or content F0 - No flashing lights content FOLLOW ME: SUBSCRIBE on YouTube https://www.youtube.com/c/JoAnnsSchool TWITTER https://twitter.com/JoannsSchool FACEBOOK https://www.facebook.com/JoAnnsSchool/ MINDS https://www.Minds.com/joannsschool PATREON https://www.patreon.com/JoannsSchool SUPPORT MY WORK: PATREON (one time or monthly) https://www.patreon.com/JoannsSchool PAYPAL (one time) https://www.paypal.me/JoAnnsSchool |
| Category | Education |
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