Peculiar number

FUN WITH MATHEMATICS
THE PECULIAR NUMBER

Slide 2

This number is three times the sum of its digits can you find the number?

Clue: It’s a two digit number.

Number....????

Slide3

Number is .... 27

Hint: 3 x 3 x 3 = 27

2 + 7 = 9

3 x 9 = 27

 It’s a two digit number.

Slide4

14287143 x 7 = 100010001

27994681 x 441 = 12345654321

152207 x 73 = 11111111

                             - MAHAVEERACHARYA

AMAZING....!!!!

Slide5

FUN TIMEWhich is the odd number here?4 9 10 16 25

Slide 6

FUN TIME - AnswerThe odd number is 10Hint: All other numbers are Squares 22, 32,42,52

Slide7

Multiplication the same as addition?1𝟏/𝟐 x 3 = 1𝟏/𝟐 + 3 = 4𝟏/𝟐 1𝟏/𝟑 x 4 = 1𝟏/𝟑 + 4 = 5𝟏/𝟑  find out some more????

Slide8

Can you place 10 coins in such a way that they lie in 5 straight lines and on each line there are 4 coins?

Slide 9

PUZZLE - Answer

Slide10

How can you make a total of 1000 by using sixteen 4’s?

Slide11

444+444+44+44+4+4+4+4+4+4 = 1000

Slide12

Which would you say is heavier – a pound of gold or a pound of cotton?

Slide 13

Think Twice

Answer

Both Weigh the Same

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THE PAGE NUMBER MAGIC

FUN WITH MATHEMATICS

THE PAGE NUMBER MAGIC

Slide2

Ask your friend to select a page in a book, 

choose a word in any one of the first nine lines and the first nine words of that line.

Ask the friend to multiply the number of the page by 2, and then 5; 

then to add 20; 

next add the number of the line, 

add 5 to that sum, and multiply by 10; 

finally to add the number of the word in the line, and to give you the result.

You can open the book to the page of the line and show the friend the word selected.

How....????

Slide3

 Condition:

select a page in a book, 

choose a word in any 

one of the first nine lines 

and the first nine words 

of that line.

Slide 4

Ask your friend to select a page in a book, choose a word in any one of the first nine lines and the first nine words of that line.

Ask the friend to multiply the number of the page by 2, and then 5; 

then to add 20; 

next add the number of the line, 

add 5 to that sum, and multiply by 10; 

finally to add the number of the word in the line, and to give you the result.

You can open the book to the page of the line and show the friend the word selected.

How....????

Solution Page 124, 1st line, 7th word.

124 x 2 = 248

248 x 5 = 1240

1240 + 20 = 1260

1260 +1 = 1261

1261 +5 = 1266

1266 x 10 = 12660

12660 +7 = 12667

Now Tell me the Answer you

 got 12667

I can show the word from the book

Slide5

How....????

Slide 6

The Page Number Magic - Solution

From the number the friend gave you, 

subtract 250, in your mind

First 3 digits will show page number

Next Middle digit is line number

Last digit is word number

Slide 7

In the above example

 Number told is 12667

now subtract 250

12667-250=12417

So, the answer is Page 124, 

1st line and 7th word which is shown in the number 12417.

chosen word is ‘of ’

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Date Of Birth Magic

 Fun With Mathematics
Date of birth magic

Slide2

Calendar

Think date and Month of birth (DD/MM)

Multiply Month by 5

Add +6

Multiply by 4

Add +9

multiply by 5

Add date of birth

Now tell the answer you got

I can tell your Date and Month of the birth

Slide3

How?

Slide4

Calendar

Think date and Month of birth (DD/MM)    

05/04

Multiply Month by 5                                    

04 x 5 = 20

Add +6                                                           

20 + 06 = 26

Multiply by 4                                                   
26 x 4 = 104

Add +9                                                               

104 + 9 = 113

multiply by 5                                         

113 x 5 = 565

Add date of birth                                   

565 + 05 = 570

Now tell the answer you got                                    

570

I can tell your Date and Month of the birth

Answer :

Date is 05

Month is 04

How?

Slide 5

How?

Subtract 165 from the number told

thats it

If you get 4 digit number then answer is first 2 digit is Month and Last 2 digit is Date.

If you get 3 digit number then answer is first 1 digit is Month and Last 2 digit is Date.

From the above example

Number said is 570

So,

570 - 165 = 405 

Here 4 is April Month & 5 is Date.

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Calendar Magic 153

 Fun with mathematics
Calendar Magic 153

Slide1

Total 153!

This Mathematics activity gives you interest to do the fundamental operations. (+, -, x, /)

Slide3

FUN ACTIVITY – Total 153!

Ask a friend to choose any    3 x 3 grid on a calendar month and draw a box around it.

Tell  your friend that you can instantly give the total of all the nine numbers in the box. 

How ???????

Slide4

How ????

Answer is 153

Slide5

FUN ACTIVITY - solutions

Take the smallest number in the square and add 8 to it. In this example, 9 + 8 =  17

Multiply that answer by nine. 

So 17 x 9 = 153 

Ask your numbers friend to check 

by actually taking the total of all nine numbers.

9 + 10 + 11 + 16 + 17 + 18+ 23 + 24 + 25 = 153 

Slide6

Try this out with another box of nine numbers.

This works for any month of any year.

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Calculator Magic

 FUN WITH MATHEMATICS
CALCULATOR MAGIC

Slide2

In Calculator

Enter 4 digit number

Add the 4 digits (this could be mind calculation)

Then subtract the above sum from the typed first 4 digit number 

Now Tell me the other 3 digits

Think any one number of the 4 digits

I can tell the Answer

How....????

Slide3

Example

In Calculator

Enter 4 digit number                                                             

4768

Add the 4 digits (this could be mind calculation)    

 4+6+7+8 =25

Then subtract the above sum from the typed first 4 digit number    

 4768 – 25 = 4743

Think any one number of the 4 digits                                   

 7

Now Tell me the other 3 digits                                                     

4 4 3

I can tell the Answer                                                     

7

How....????

Slide4

How....????

Slide5

How....????

ADD THE DIGITS and subtract from the 9 

4+4+3=11

1+1=2

 9 – 2 =7

the result is thinking OF number

IN THIS EXAMPLE 7

Slide6

FUN WITH MATHEMATICS

CALCULATOR MAGIC 2

Slide7

Just tell me your favorite number FROM 1 TO 9

I can tell the Answer Before you multiplying and proceeding the procedure 

If your favorite number is 1 then answer is 111111111

If your favorite number is 2 then answer is 222222222

If your favorite number is 3 then answer is 333333333

If your favorite number is 4 then answer is 444444444

If your favorite number is 5 then answer is 555555555

If your favorite number is 6 then answer is 666666666

If your favorite number is 7 then answer is 777777777

If your favorite number is 8 then answer is 88888888

If your favorite number is 9 then answer is 99999999

How?????

How....????

Slide8

How....????procedure

tell any favorite number from 1 to 9

example

3

multiply with 9                                

3 x 9 =27

then multiply with                                               

12345679 x 27 

the result is

IN THIS EXAMPLE                                         

333333333

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5 Digit Number Magic

5 Digit number Difference magic

Slide2

Write a five digit number. 

Reverse it. 

Subtract (smaller from the bigger) 

score out any one of five digits in the difference. 

Tell the remaining digits in any order. 

The scored out digit is given immediately.

How…???

Slide 3

For Example:

Write a 5 digit number -- 59264

Reverse it --- 46295

Subtract it from bigger - 12969

Let the digit scored out be 6.

The remaining digits are 1, 2, 9, 9

Tell the remaining digits in any order. 

The scored out digit is given immediately. 

It is 6

How…???

Slide4

How…???

Slide5

Find the total of 1, 2, 9 and 9. 

It is 21.

If we add 6, it is divisible by 9. Hence the scored out digit is 6.

[ if 0 or 9 is scored out, we can say either 0 or 9 ]

Slide6

For Example:

Write a 5 digit number -- 34506

Reverse it --- 60543

Subtract it from bigger - 26037

Let the digit scored out be 0.

The remaining digits are 2, 6, 3, 7

Tell the remaining digits in any order. 

The scored out digit is given immediately. 

It is 0

How…???

Slide7

Find the total of 2, 6, 3 and 7. 

It is 18.

If we add 0, it is divisible by 9. Hence the scored out digit is 0.

[ if 0 or 9 is scored out, we can say either 0 or 9 ]

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Amazing 
Repeated subtraction 6174!

Slide1

Take a 4 digit number. (All digits different)

(2) Arrange its digits in descending order--- (a)

(3) Arrange its digits in ascending order---- (b)

(4) Find (a) - (b).

(5) Repeat the process.

What do you see?

Slide3

For example:

I am Taking 4 digit number         

9265 

Arrange in Descending order 

9652 

Arrange in Ascending order        

 2569 

Now subtract                   

9652-2569 = 7083

Repetition

Arrange in Descending order 

8730 

Arrange in Ascending order        

 0378 

Now subtract                 

8730 – 0378 = 8352 

Repetition

Arrange in Descending order 

8532 

Arrange in Ascending order         

2358 

Now subtract               

8532 – 2358 = 6174 

Repetition                      

(7641- 1467 = 6174!)

Arrange in Descending order 

7641 

Arrange in Ascending order        

1467 

Now subtract               

7641 – 1467 = 6174 

Slide4

For example:

I am Taking 4 digit number         

9265 

Arrange in Descending order 

9652 

Arrange in Ascending order        

2569 

Now subtract                  

9652-2569 = 7083

Repetition

Arrange in Descending order 

8730 

Arrange in Ascending order       

0378 

Now subtract                 

8730 – 0378 = 8352 

Repetition

Arrange in Descending order 

8532 

Arrange in Ascending order        

2358 

Now subtract              

8532 – 2358 = 6174 

Repetition (7641- 1467 = 6174!)

Arrange in Descending order 

7641 

Arrange in Ascending order         

1467 

Now subtract               

7641 – 1467 = 6174 

Slide5 

For example:

I am Taking 4 digit number         

4256 

Arrange in Descending order 

6542 

Arrange in Ascending order         

2456 

Now subtract           

6542-2456 = 4086

Repetition

Arrange in Descending order 

8640 

Arrange in Ascending order         

0468 

Now subtract         

8640 – 0468 = 8172 

Repetition

Arrange in Descending order 

8721 

Arrange in Ascending order         

1278 

Now subtract        

8721  – 1278 = 7443

Repetition

Arrange in Descending order 

7443 

Arrange in Ascending order         

3447 

Now subtract        

7443 – 3447 = 3996

Repetition

 Arrange in Descending order 

9963 

Arrange in Ascending order

3699 

Now subtract        

 9963 – 3699 = 6264 

Repetition

Arrange in Descending order   

6642 

Arrange in Ascending order

2466 

Now subtract         

6642 – 2466 = 4176 

Repetition (7641- 1467 = 6174!)

Arrange in Descending order   

7641 

Arrange in Ascending order

1467 

Now subtract         

7641 – 1467 = 6174 

Slide 6

For example:

I am Taking 4 digit number

5832

Arrange in Descending order         

8532 

Arrange in Ascending order

2358 

Now subtract            

8532-2358 = 6174

Repetition (7641- 1467 = 6174!)

Arrange in Descending order 

7641 

Arrange in Ascending order

1467 

Now subtract        

7641 – 1467 = 6174 

Slide7

For example:

I am Taking 4 digit number

6345 

Arrange in Descending order 

6543 

Arrange in Ascending order

3456 

Now subtract            

 6543-3456 = 3087

Repetition

Arrange in Descending order 

8730 

Arrange in Ascending order

0378 

Now subtract               

8730 – 0378 = 8352 

Repetition

Arrange in Descending order 

8532 

Arrange in Ascending order

2358 

Now subtract      

8532 – 2358 = 6174 

Repetition (7641- 1467 = 6174!)

Arrange in Descending order 

7641 

Arrange in Ascending order 1467 

Now subtract        

7641 – 1467 = 6174 

Slide 8

What do you see?

6174

Amazing!

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Thank You🙏🏻

watch it on youtube: click here

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