# Video Tutorials

Posted by Unknown on 2:58 AM in
Video tutorials to Study the Complex  Mathematical Calculations Easily using only your Mind with no PAPER OR PEN IN HANDS

# Birthday Calculator

Posted by Unknown on 2:25 AM in
Steps
Step1: Add 18 to your birth month.
Step2: Multiply by 25.
Step3: Subtract 333.
Step4: Multiply by 8.
step5: Subtract 554.
step6: Divide by 2.
step8: Multiply by 5.
step10: Multiply by 20.
step11: Add only the last two digits of your birth year.
step12: Subtract 32940 to get your birthday!.

IF the Result is like .....51892

Then 18-Date
5-Month
92 -Year

# Age Calculator

Posted by Unknown on 2:15 AM in
Steps:

1) Pick a no frm 1 to9

2) Multiply your number by 2

3) Add 5 to the number u created in step2

4)Multiply the no.u created in step3 by 50

5) IF u havent had ur b'day

6)Subtract the year u where born

Example:

1.2
2.2*2=4
3.4+5=9
4.9*50=450
5.450+1760=2210
6.2210-1992=218

my Age is 18.... i.e last Two Digits :-) try it out & enjoy # Trick to make appear a number four times

Posted by Unknown on 2:11 AM in
This trick is going to make a number you choose appear six times (to get the best effect it helps if you have a calculator). Think of a number between 1 and 9. Now multiply it by 7, then by 3, next by 11, then by 37, and finally by 13.

Example:

Let if i choose a no.4 then

4*7=28

28*3=84

84*11=924

924*37=34188

34188*13=444444 :-)

also try this using C programing and C++ programming for your leisure time practices :-)

# Hand Calculator

Posted by Unknown on 2:04 AM in ,

Preparation

Draw these calculator keys on your palms with a ballpoint pen. Presentation

Tell your friend that she can multiply by 9 on your hands just as she would on a regular calculator. After she enters the numbers and pushes (=) , just bend over the finger that is multiplied by 9. The fingers that are standing up tell her the answer!  # Digital Roots by Casting "9"

Posted by Unknown on 1:50 AM in ,

What is Digital root?

If we add up the digits of a number until there is only one number left we have found what is called the digital root. In other words, the sum of the digits of a number is called its digital root.

Example:

For 5674, 5 + 6 + 7 + 4 = 22 and 2 + 2 = 4

» 4 is the digital root of 5674

One use of digital roots is for divisibility tests (like 3 and 9). This method makes it easier to calculate the digital root.

Example: Example:

Find the digital root of 257520643 Steps:

1. 2 + 7 = 9, cross out 2 and 7.

2.4 + 3+2 = 9, cross out 4, 3 and 2.

3.There are no other groups of numbers adding up to 9.

4.Add up the remaining digits, 5 + 5 + 0 + 3 = 13.

5.13 is more than 9, so 1 + 3 = 4.

6.The digital root is 4.

If there is nothing left after having cast out nines then the digital root is 9.

# Syllabus for EIE dept Anna Univ Chennai

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Posted by Unknown on 10:40 AM in
St.Joseph's college of engineering : Internal marks

# DSD two marks (Digital System Designs)

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