Fast Maths Secrets

2012-08-31T22:52:00.003-07:00

In this site, i like to share my view point on easy Maths Tricks. Have you ever wondered why some of the peoples are so good at number calculation, while others struggles and thinks.

Question : Is there any easiest way to calculate Fast ?

The answer is, yes definitely, there is......

You just Relax and Cheer Up. Today I am about to tell you the Secret of Faster Math.
I will teach you some of the easiest Math calculation tips and tricks for faster Mathematics.

After watching this video you will definitely throw your calculator outside your window, because you not be needing it any more.

Lets watch......

This is normally called long multiplication but actually the answer can be written straight down using the VERTICALLY AND CROSSWISE formula.

We first put, or imagine, 23 below 21:

There are 3 steps:

a) Multiply vertically on the left: 2 x 2 = 4. This gives the first figure of the answer.
b) Multiply crosswise and add: 2 x 3 + 1 x 2 = 8. This gives the middle figure.
c) Multiply vertically on the right: 1 x 3 = 3. This gives the last figure of the answer.

Similarly 61 x 31 = 1891

6 x 3 = 18; 6 x 1 + 1 x 3 = 9; 1 x 1 = 1

Multiply any 2-figure numbers together by mere mental arithmetic.

If you want 21 stamps at 26 pence each you can easily find the total price in your head. There were no carries in the method given above.
However, there only involve one small extra step.

21 x 26 = 546

The method is the same as above except that we get a 2-figure number, 14, in the middle step, so the 1 is carried over to the left
(4 becomes 5).
33 x 44 = 1452
There may be more than one carry in a sum:

Vertically on the left we get 12. Crosswise gives us 24, we then carry 2 to the left and mentally get the 144.
Then vertically on the right we get 12 and the 1 here is carried over to the 144 to make 1452.

==========================
Multiplying a number by 11

To multiply any 2-figure number by 11 we just put the total of the two figures between the 2 figures.26 x 11 = 286
Notice that the outer figures in 286 are the 26 being multiplied.
And the middle figure is just 2 and 6 added up.So 72 x 11 = 792

77 x 11 = 847
This involves a carry figure because 7 + 7 = 14
we get 77 x 11 = 7147 = 847.

234 x 11 = 2574
We put the 2 and the 4 at the ends.
We add the first pair 2 + 3 = 5.
and we add the last pair: 3 + 4 = 7.

Maths Tips And Tricks

Fast Maths Secrets