Multiplication tables

slant said:
I am a verbal/spatial learner.

I'm a bit of a visual learner too sometimes.
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When I learned them it was basically a game of repeated memorization - I wanted to see how many I could get right. So I would say 2x2 = 4, 3x3 = 9, 4x4 = 16, etc. and then everything in between came with that and was reinforced through school. There were a few times when I used to pace while memorizing something, like when studying for a foreign language exam, I would repeat things to myself and pace around a room. I also find talking myself through something aloud, repeating things as though I'm having a conversation or just repeating aloud helps tremendously, depending on the subject.
 
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It really is just a matter of using multipication so much that it just becomes second nature for the 0-10 numbers. Albeit anything outside that I will stare at it and often need a calculator.
 
I don't have them all memorized and I have done very well in math. I know the 1's - 5's and 10's and squares and work out the rest.

For instance,

7*8= 7*7+7=49+7=56
6*9=6*10-6=60-6=54

I tend to simply everything into what I do know and then work from there. It got me through calculus, physics and chemistry, so I know it works. All numbers are relative to other numbers. I will sometimes do it more than one way to check my answers.

6*9=6*10-6=60-6=54, or 5*9+9=45+9=54

I tend to break everything down into primes, 4's or 10's, for convenience, but it doesn't really matter, as long as you have a base of knowledge and understand the relationship every number has with every other number.

I hope this helps!
 
Freemena said:
I don't have them all memorized and I have done very well in math. I know the 1's - 5's and 10's and squares and work out the rest.

For instance,

7*8= 7*7+7=49+7=56
6*9=6*10-6=60-6=54

I tend to simply everything into what I do know and then work from there. It got me through calculus, physics and chemistry, so I know it works. All numbers are relative to other numbers. I will sometimes do it more than one way to check my answers.

6*9=6*10-6=60-6=54, or 5*9+9=45+9=54

I tend to break everything down into primes, 4's or 10's, for convenience, but it doesn't really matter, as long as you have a base of knowledge and understand the relationship every number has with every other number.

I hope this helps!
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Yup :) I do poorly with random memorization, but I do well with systems.
 
Use music. Try something like this:
[YOUTUBE]Zjl4f1BCLxY[/YOUTUBE]
It's hard to find one for free.
 
Freemena said:
I don't have them all memorized and I have done very well in math. I know the 1's - 5's and 10's and squares and work out the rest.

For instance,

7*8= 7*7+7=49+7=56
6*9=6*10-6=60-6=54

I tend to simply everything into what I do know and then work from there. It got me through calculus, physics and chemistry, so I know it works. All numbers are relative to other numbers. I will sometimes do it more than one way to check my answers.

6*9=6*10-6=60-6=54, or 5*9+9=45+9=54

I tend to break everything down into primes, 4's or 10's, for convenience, but it doesn't really matter, as long as you have a base of knowledge and understand the relationship every number has with every other number.

I hope this helps!
Click to expand...

That's what I was getting at earlier, albeit a lot more simplified than this. Best method.
 
slant said:
I know my 1's, 5's and 10's and partial 12's but everything else I have no clue,

oh and I know my 2's.


Also, 5+8 is not programmed into my brain- I have to count.
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It also works for addition. I don't know 5+8 off the top of my head, but I know 8=5+3 and I know 5+5=10 so 5+8 must be 5+5+3=10+3=13. I do this for EVERYTHING. The only memorization (for addition, subtraction, multiplication or division) needed is for primes. Everything else I just work out based on smaller components.
 
I never learned those. Instead, I developed my own strange ways of doing superfast computations. Can't really explain them though, it's always different, I don't have a clear system. I know it works faster than average.

I just use all kinds of "shortcuts", because I know a lot about numbers' properties. For example, I can tell immediately if a number is divisible by 3 or 9, and even 11 is easy; I factorize complex numbers to primes quite fast etc. It seems I've "hardwired" methods, instead of data tables. I could never remember these 100 numbers in the tables - they are useless.
 
slant said:
how did you memorize your multiplication table? I have a really hard time memorizing numbers.
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Like quite a few posters in this thread, I never did. Before I started school, My mother taught me to count in bases other than 1 (or 10), which served me right through primary school.

Remember, that conceptually, subtraction, division, multiplication are all forms of addition - that is to say, counting.
 
you count in multiple bases?? thats so cool.

so you know the amazing feat of counting to 1023 on only two hands?
 
I don't have most of them memorized but I can do them pretty quick by breaking them down into things I DO have memorized. Sort of like what's been said before.

5's and 10's are easy. So if I want to know something that seems "difficult" like 8 x 9 I just think about 8 x 10 -8. Or maybe 6 x 7, which would be 5 x 7 +7.

I can take this further into double digits pretty well too.
 
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I used to look at the numbers until they stuck in my brain.

Like 7 7 49. Now, whenever I see two of the numbers my brain automatically fills in the third.
 
I always sucked at multiplication tables, especially once I got a hold of a calculater it all went out the window after that.

Ironically, now I work with numbers all day.
 
There's a phenomenon where people who play Tetris too long start imagining falling blocks when they're half asleep. Do enough multiplication, and a similar thing would probably happen.

Although that might be a bad thing, lol :m097:
 
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