>>11978869is that the one where you multiply by 10 then subtract the number?
I do it that way
>>7 14 21 times two is 42
>7x8memorized as 5678
>squaresmemorized
now my dirty secret is that I have not memorized anything else
or rather I know the sequences. I do not know what 7x5 is for instance.
Sometimes I start at 25 and then do two more fives for 35
other times I go 7 14 21 28 35 in my head
basically everything is such a sequence
8x6 is 8 16 24 *2 -> 48
if the numbers are larger than 10 I might drop my sequences and instead start looking for factors or multiplying by the closest 10th and subtracting or something like that though.
But still,
t. studying stats
