Math's Easy Tricks - Part-01 #50

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Multiply Shortcut

Multiply two-digit number having the same tens digit number and one’s digit sum is 10.

   62 

x68

    6 x (6 + 1)    (2 x 8)

Take this first digit &                                                             Take this first digit & 

multiply it by the next                                                                multiply it by the next 

number that follows it.                                                                number that follows it.

24                           16

4216

This rules applicable in any number


Square Root Magic

How to find magic 

 

·         

Q1. (75)2 = 5625

7 X 8 = 56                                        5 X 5 = 25

 

·         
Q2. (125) = 15625

 12 X 13 = 156                                          5 X 5 = 25


Ad d or Subtract

2                                               4

    5                                                  7   

Step:1

14        +          20




2                      4

5                      7

5          X          7

2 x 7 = 14

5 X 4 = 20

5 X 7 = 35

Step:2

14        +          20



2                      4

5                     7

5          X          7


                                                                               

14 + 20 =              34

5 X 7 =                  35


Mixed Number

       1      

                                                                                                                3

                                                                                                                      5

(5 X 3) + 1 = 16


Multiply Number end in Zero

200 x 400

Step 1: Multiply the 2 in 4

2 x 4 = 8

Step 2: Put all zeros after the 8

80,000

200 x 400= 80,000

 


97           X            96           =              9312

100 – 97              100 – 96              100 – 7 = 93


       3             +                  4           =               7     

3 X 4 = 12


Magic Age

Try thisJ

259 X (Your age) X 39 =??

See the result

If you found something special, then don’t forget to Comment your magical number.

 

 

Thank You

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