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>tfw you wake up one day and realize you can't remember your basic multiplication tables anymore
what the fuck is happening to me /sci/? I had difficulty trying to multiply out 12x13 in my head the other day. When I attempted to do it by hand, I completely forgot how to multiply it out that I had to look at a YouTube video for help.
I'm not getting Alzheimer's already am I???
I'm only 21 years old and currently doing a masters in Quantitative Finance. I had a GPA of 3.6 when I was a math undergradte and before that I was in the top 10 in my class in high school entrance exams.
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>>9061862
12x13 = (10+2)x(10+3) = 100 + 10x(2+3) + 2x3 = 156
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>>9061870
>not doing 12*13=12*12+12=144+12=156
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>>9061862
12x13 is not a basic kek.
But still is easy to do in your head if you remember that shit they thought us in elementary school
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>>9061862
>learning multiplication beyond 10
Waste of time, desu
In fact if you're doing math in base B you shouldn't learn multiplication tables beyond B
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>>9061862
I doubt its alzheimers. You're just a bit rusty. It's really not that uncommon. When I used to do nothing but calculus my multiplication skills went down the drain
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your brain forgets math very easily, that's how it is.
the brain is designed to remember facts, not numbers.
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nah Alzheimers starts at the age of 30 in the worst case possible
you're probably stressed or tired
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>>9061862
>not going 10x13 + 2x13 = 156
12x13 is rather unintuitive to your brain. you're not von neumann mate, you need a system.
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