Math Is Fun Forum

Heather Corrigan

Guest

Tables

Hello

I need some help with my tables.
so could you please send me some help to my email please.
It would really help because i need to no them for going back to school.
I no my 2,3,4,5,10 and 6 very well but i get stuck at the 7,8 and 9.
Its the school holidays right now so i need to revise them all for going
back to school because i just came out of p5 and i am now going into
p6 so please help me. Thank you very much .

From Heather Corrigan

Zach

Member

Registered: 2005-03-23

Posts: 2,075

Re: Tables

The 9's are easy. Say; 6 x 9. Times 6 by 10 and then minus 6.
6 x 9 = 6 x 10 = 60 - 6 = 54.
Or, you put your fingers up and then put down a single digit corresponding with the number you're multiplying by 9. On one side is the 10's, the other are the 1's.

7's are notably the most difficult of the 1-10 times table, apparently and so are 8's. Practice makes perfect.

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Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
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MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Tables

It is true, 9 is easy once you see the pattern.

Notice:
9x2=18  ...  the 1 in the 10s place is one less than 2
9x3=27  ...  the 2 in the 10s place is one less than 3
9x4=36  ...  the 3 in the 10s place is one less than 4

Also with 9 times, the digits of the answer always add back to 9

For example:
9x2=18  ...  but notice that 1+8=9
9x3=27  ...  but notice that 2+7=9
9x4=36  ...  but notice that 3+6=9

So, try it out:
9 times 7?  Go one less than 7 and you get 6. Then think 9-6=3, so the answer is 63

Zach is right about the 7 and 8 times tables, they just need memorizing

Here is a worksheet to help you practice on.

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