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  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 2005-04-15 06:27:48

Susie Blue Raynor
Guest

Loving it

Hi Mathisfun!

Sorry I've got to be sooo quick coz my sister Louise (who calls herslf Xavier???) is gonna find me on her laptop!:) My mom's gonna tell me off if she finds me on it.  Anyway i would love some advice on my 9times tables, i'm rubbish:(!!!
 
                                   Anyway, gotta go my sis is comin
                                       Love ya.x

#2 2005-04-15 07:49:54

Zach
Member
Registered: 2005-03-23
Posts: 2,075

Re: Loving it

9 times tables are rather simple. Take the number, times it by 10 and then minus the number.

For example, 15 x 10 = 150 - 15 = 9 x 15.


Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.

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#3 2005-04-18 00:19:45

insomnia
Real Member
Registered: 2005-03-23
Posts: 944

Re: Loving it

you didn't actually write the answer there so we have no proof that it works.


Friends are angels who lift our feet when our own wings have trouble remembering how to fly

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#4 2005-04-18 01:03:46

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,713

Re: Loving it

Zach wrote:

9 times tables are rather simple. Take the number, times it by 10 and then minus the number.

Example: 6 times 9

Take 6, times it by 10 (60), then minus the 6 and you get 54.  6 x 9 = 54

Another example: 8 x 9 = 80-8 = 72.


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#5 2005-10-06 19:05:22

Chelsea
Member
Registered: 2005-06-16
Posts: 390

Re: Loving it

memerize them


Theres no other place like home or is there..............

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#6 2005-10-07 10:52:39

jU
Real Member
Registered: 2005-08-17
Posts: 1,923

Re: Loving it

or            see 9,8,7,6,5,4,3,2,1,0,9
               and on the other side 1,2,3,4,5,6,7,8,9,0
               + there's another way both numbers make nine 1+8=9
     9
    18
    27
    36
    45
    54
    63
    72
    81
    90
    99

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