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The Japanese multiplication table × 1 ichi 2 ni 3 san 4 shi 5 go 6 roku 7 shichi 8 ha 9 ku; 1 in: in'ichi ga ichi: inni ga ni: insan ga san: inshi ga shi: ingo ga go: inroku ga roku: inshichi ga shichi: inhachi ga hachi: inku ga ku: 2 ni: ni ichi ga ni: ni nin ga shi: ni san ga roku: ni shi ga hachi: ni go jū: ni roku jūni: ni shichi jūshi ...
5 is halved (2.5) and 6 is doubled (12). The fractional portion is discarded (2.5 becomes 2). The figure in the left column (2) is even, so the figure in the right column (12) is discarded. 2 is halved (1) and 12 is doubled (24). All not-scratched-out values are summed: 3 + 6 + 24 = 33. The method works because multiplication is distributive, so:
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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.
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The Leitner system for scheduling flashcards was introduced by German scientific journalist Sebastian Leitner in the 1970s with his book, So lernt man lernen. [6] Later, the SuperMemo program and algorithm (specifically the SM-2 algorithm, which is the most popular in other programs) was introduced in 1987 by Polish researcher Piotr Woźniak .
Truth table This page was last edited on 1 October 2024, at 00:38 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
The invention, however is the complete solution for the puzzle, it makes children no need to remember any multiplication statements in the times table. We've used transformed 1st circle to indicate the total carriers (as 2017's picture marked the 1st digit differently), and then ask children to find the 3 group of lines with sum up as total ...