Starting from the squares (1, 4, 6, 16, etc.), all cells 1 step diagonally removed are 1 lower. Now we are going to cut the work in another half as well. The middle line is a line with squares and the numbers below it are replicated above it.
Most people know the table 1-10, maybe even 1-12: Let’s see if we as a forum can come up with ways to quickly do this. In my opinion it generates a lot more mental plasticity if you can actually quickly calculate them. However, it is still a staggering amount of data to memorize. Since 318 X 524 is the same as 524 X 318, you can half the amount of numbers. The multiplication tables 1-1000 contain a million numbers. This can be done using your preferred number coding system like the Major System:
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