An innovative multiplication method, taught in Japanese schools, is taking the internet by storm due to its simplicity and engaging way of approaching mathematics. By turning multiplication into a visual game, this method is making learning more accessible and engaging, especially for those who have difficulty with traditional calculations. The technique, which recently went viral on platform X (formerly Twitter), led many users to ask themselves: “Why were we never taught this at school?” Find out more about this Japanese method of multiplying.
The trick is to represent multiplication using parallel lines. To do this, sets of parallel lines are drawn for each digit of the first number (normally vertically). Then, do the same for the digits of the second number, but this time with horizontal parallel lines, intersecting with the first ones.
The secret lies in the intersections formed by the lines, reveals . Each intersection point is counted in specific sections that represent different numerical positions of the final answer. The rightmost section corresponds to the lowest order place value (the units), while the leftmost section represents the highest order place value (the hundreds, for example). The sum of the points in each section results in the final product of the multiplication.
Vídeo Tiktok | DR
This visual method is especially useful for small numbers and can be expanded to more complex calculations. However, in these cases it may be necessary to divide the diagram into several parts for clarity. Despite its effectiveness and simplicity, the method does not dispense with basic knowledge of arithmetic, such as carrying digits when high values appear in certain sections.
For many, the Japanese method of multiplication is not only a practical tool, but also a fun way to learn and visualize mathematics. If you’ve never seen how it works, it’s worth watching a video that demonstrates the process – you might be surprised at how intuitive it is.
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