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The oldest known tables using a base of 10 are the Chinese decimal multiplication table on bamboo strips dating to about 305 BC, during China's Warring States period. [2] "Table of Pythagoras" on Napier's bones [3] The multiplication table is sometimes attributed to the ancient Greek mathematician Pythagoras (570–495 BC).
Numberphile is an educational YouTube channel featuring videos that explore topics from a variety of fields of mathematics. [2] [3] In the early days of the channel, each video focused on a specific number, but the channel has since expanded its scope, [4] featuring videos on more advanced mathematical concepts such as Fermat's Last Theorem, the Riemann hypothesis [5] and Kruskal's tree ...
So instead of thinking "half of seven is three and a half, so three" it's suggested that one thinks "seven, three". This speeds up calculation considerably. In this same way the tables for subtracting digits from 10 or 9 are to be memorized. And whenever the rule calls for adding half of the neighbor, always add 5 if the current digit is odd.
Four bags with three marbles per bag gives twelve marbles (4 × 3 = 12). Multiplication can also be thought of as scaling. Here, 2 is being multiplied by 3 using scaling, giving 6 as a result. Animation for the multiplication 2 × 3 = 6 4 × 5 = 20. The large rectangle is made up of 20 squares, each 1 unit by 1 unit.
The following table lists the top 30 most-viewed videos on YouTube, with each total rounded to the nearest 10 million views, uploader, and publication date.Note that some videos may not be available worldwide due to regional restrictions in certain countries.
Three matzos on the Passover Seder table [23] The Three Weeks, a period of mourning bridging the fast days of Seventeenth of Tammuz and Tisha B'Av; Three cardinal sins for which a Jew must die rather than transgress: idolatry, murder, sexual immorality [24] Upsherin, a Jewish boy's first haircut at age 3 [25] A Beth din is composed of three members
Toggle the table of contents. ... YouTube Kids is an American video app and website for children developed by YouTube, ... [3] [4] On May 27, 2020, it ...
The rule of three [1] was a historical shorthand version for a particular form of cross-multiplication that could be taught to students by rote. It was considered the height of Colonial maths education [ 2 ] and still figures in the French national curriculum for secondary education, [ 3 ] and in the primary education curriculum of Spain.