Maths made Fast & Convinient !!, Methods & Formulas for everyday Maths !!

neroshan

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Oct 30, 2006
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Maths made Fast & Convinient !!, Methods & Formulas for everyday Maths !!


Maths Faster than Before

In this topic, I will discuss Practical Methods to make Everyday Maths faster !!

If you practice regularly, your Maths will be very fast !!

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1.) 2 Digit x 2 Digit Number = ?

Multiplying a 2 digit number into 2 digit number .... OK ??

Traditional method is very long, See this example ----->

12
x34
-----
48
360
-----
408
-----

My Method <One Line, Fast> -------->

See this image ---->

post-10-1193333035.jpg


Steps:

1. Write the Question .... In answer place, make 2 Slashes ( / ) which make 3 Sections ....

2. On Right Section, multiply 2 & 4 (Right Corner Numbers) and write it there (1x3=3)

3. On Left Section, multiply 1 & 3 (Left Corner Numbers) and write it there (2x4=8)

4. Middle is a little tough ... Cross Multiply 1x4 & 2x3 and add up result (1x4)+(2x3) = 4+6 = 10

5. You have 3 sections full like this, ---- 3/ 10/ 8 <now, the middle "1" will be carried over, added to 3>

6. 4/ 0/ 8 ------------ remove slashes and this is the answer = 408.


This 2nd Example will make it clear, but remember YOU NEED PRACTICE !!

post-10-1193333110.jpg