Скачать или смотреть Fast Maths Trick - How to Multiply ANY Number by 9 Fast!

Fast Maths Trick - How to Multiply ANY Number by 9 in Your Head Quickly!
http://sumplace.co.uk/fast-maths-tric...

This is a great maths trick that you can use to multiply any number by 9 in your head.

For example:

What is 9 x 35?

Step 1: Instead of multiplying the number by 9, multiply the number by 10 instead so,

9 x 35 (becomes)
10 x 35 = 350 (multiplying by 10 is easy, just put a '0′ on the end of the number)


Step 2: Subtract the number that you're multiplying by 9 from the answer to Step 1.

350 -- 35 = 315


So, 9 x 35 = 315

Here's another YouTube video which shows you a highly effective technique of how to remember your 9 times table by using your fingers. Watch it here --    • Learn your 9 times table fast using your f...  


Also, if you need a quick reminder of how to do your 10 times table, subscribe to my list and you'll get my free videos 'Learn Your Times Tables 1 to 10 Times Fast!'
http://sumplace.co.uk/landing/learn-y...