Maths Magic, Interesting Mathematical Concepts

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Maths Magic, Interesting Mathematical Concepts

Mathematics is full of magic, It is the game with numbers. A person with the knowledge of mathematical tricks can use it as a magic. Here you learn many tricks and magics which make you different from others.

Interesting mathematical concepts (Maths Magic)

Introducing interesting mathematical concepts (Maths Magic) in the classroom can have several positive learning outcomes for students. Here are some of the key benefits:

Increased Engagement:

When students find the topics interesting, they are more likely to actively engage in the learning process, participate in class discussions, and ask insightful questions.

Improved Problem-Solving Skills:

Exploring interesting mathematical concepts often involves solving complex problems that require critical thinking and logical reasoning. By tackling challenging problems, students develop their problem-solving skills, learn to analyze situations from different angles, and become better equipped to apply mathematical principles to real-world scenarios.

Enhanced Mathematical Thinking:

Interesting mathematical concepts often require students to think outside the box and explore unconventional approaches to problem-solving. This promotes creative and flexible thinking, as students learn to connect different mathematical ideas and develop their own strategies for tackling complex mathematical problems.

Deepened Understanding:

Introducing intriguing mathematical concepts can help students develop a deeper understanding of fundamental mathematical principles.

Long-term Retention:

By presenting interesting mathematical concepts, teachers can create memorable learning experiences for students. This can have a positive impact on their overall mathematical knowledge and skills in the long run.

Preparation for Advanced Topics:

Introducing interesting mathematical concepts can serve as a foundation for more advanced topics. 

Magic 1 : Method of finding day from the date of birth

In order to find the day from the date of birth we should have the knowledge of two tables which are given as follows.

Table of days
Name of the day	Day Code
Sunday	1
Monday	2
Tuesday	3
Wednesday	4
Thursday	5
Friday	6
Saturday	0

Table of Months
Name of the Month	Month Code
January	1
February	4
March	4
April	0
May	2
June	5
July	0
August	3
September	6
October	1
November	4
December	6

Start from the date of birth let it is   03 – 08 – 1977

Step 1:-  1977 – 1900(Nearest century less than or equal to the  year of birth) = 77

Step 2:-  77 divide by 4 (leap year factor)    = 19 (leap years) + 1 (year extra)

Step 3:-  77(subtraction result of first step) + 19 (no. of leap years) = 96

Step 4:-  96 + 03 (no. of days from the date of birth) = 99

Step 5:-  99 + 03 (month code of August from the above table )=102

Step 6:-  102 divide by 7 (no. of days in one week) = 14 (quotient) and  4(remainder)

4 means Wednesday (from 2^nd table of day codes.

In this way we can find the day from any date of birth.

Magic 2 : Getting three digit integer written twice

Consider any three digit number and multiply it by 1001. Now the result is the original number written twice.

For example:  456 x 1001 = 456456

                         678 x 1001 = 678678 and so on

This is true for all the three digit numbers.

Magic 3 : Always get answer 7

Back to the same number seven (7)
S No	Steps	Results
1	Select any number, Let it is	15
2	Double it we get	30
3	Adding 17 to it we get	47
4	Subtracting 3 from it we get	44
5	Dividing  44 by 2 we get	22
6	Subtract original number from 22 we get	07

If we repeat the above given steps with any number we always get the same result = 07

Magic 4 : Magic Number 142857

When we divide 1000000 by 7 the then quotient is 142857. This number is a magic number because of the following reasons.

This number shows a cyclic property (clockwise) as follows

142857 x 1 = 142857  Start from 1 and go clockwise direction

142857 x 2 = 285714  Start from 2 and go clockwise direction

142857 x 3 = 428571 Start from 4 and go clockwise direction

142857 x 4 = 571428 Start from 5 and go clockwise direction

142857 x 5 = 714285 Start from 7 and go clockwise direction

142857 x 6 = 857142 Start from 8 and go clockwise direction

Magic 5 : Predicted table of 1089

Tell your friend to write any three digit number. It should be such that the left hand digit exceeds right hand digit by at least 2.

Let the number be	981
Its reverse order is	189
Subtract 981 from 189	792
Reverse order of 792	297
Add 792 and 297 we get	1089

The result is always same with all three digit numbers with above condition.

Magic 6 : Get a series of two

Write natural number from 1 to 9 in ascending order in first row.

Write natural number 9 to 1 in descending order in second row.

In third row repeat the digits of first row.

In fourth row repeat the digits of second row.

In fifth row write only 2 and add vertically.

Result : We get a series of 2.

First Row	1	2	3	4	5	6	7	8	9
Second Row	9	8	7	6	5	4	3	2	1
Third Row	1	2	3	4	5	6	7	8	9
Fourth	9	8	7	6	5	4	3	2	1
Fifth Row	+	+	+	+	+	+	+	+	2
Total	2	2	2	2	2	2	2	2	2

Magic 7 : Prove that  2 = 1 which is not generally true

To Prove  2 = 1

It is well known fact that 2  is not equal to 1 but we can prove that 2 = 1 by using the following algorithms

Let us consider the expression   a² – a²

a2 – a2	(a + a)(a – a)
a(a - a)	(a + a)(a – a)
Dividing both side by (a-a)
a	a + a
a	2a
1	2

Magic 8 : Prove that 3 = 4 which is generally not true

It is well known fact that 3 is not equal to 4 but we can prove it as follows

Magic 9 : Magic Number  12345679

12345679 is a magic number because of the following reasons

12345679 x 9 (1 x9) = 11111111

12345679 x 18(2 x 9) = 22222222

12345679 x 27 (3 x 9) = 33333333

12345679 x 36 (4 x 9) = 44444444

……………………………………………..

……………………………………………..

12345679 x 81 (9 x 9) = 99999999

Magic 10 : Magic of Number 152207

152207 is a magic number because if we multiply it by 73 then we get eight times one.

If we multiply it by 73 X 2  then we get eight times two.

If we multiply it by 73 X 3  then we get eight times three and so on...

Example :

152207 x 73 (73 x 1)	11111111
152207 x 146 (73 x 2)	22222222
152207 x 219 (73 x 3)	33333333
152207 x 292 (73 x 4)	44444444
152207 x 365 (73 x 5)	55555555
…………………..	………….
152207 x 657 (73 x 9)	99999999

Magic No 11 : Always getting Answer 

Think of a number. Double it. Add six to it. Make its half. Take away the number you started with. Your is is always 3

 Magic No. 12: Story of a Mathematician

 Once a math. teacher lend Rs 15000 from a rich person, after few days he again lend Rs 25000 from the same person and then forget to return the money. After many days the rich person went to the Math. Teacher and ask for the money. Math. Teacher replied as he returned the money many days back. He explains the concept as follows.

15000+25000	40000
A + B	C
(A +B)(A+B)	C(A + B)
A2 + AB + AB + B2	AC + BC
A2 + AB - AC	BC – AB - B2
A(A + B - C)	-B(A + B - C)
Cancel (A +B – C) on both side we get
A	- B
A + B	0

Magic No. 13: Finding the age from your mobile number

Funny question with logic for the year 2022
Take last digit of your mobile number then follow these steps
Take last digit of mobile number ⇒Multiply it by 2 ⇒ Add 5 ⇒ Multiply by 50 ⇒ add 1772 ⇒ Minus year of your birth ⇒ we get a three digit number and we get the following result.
First digit is your mobile number and last two digit is your age.

In 2023 the number should be added is 1773.

In 2023 the number should be added is 1774  and so on 

Magic No. 14: Finding the number you guess

MAGIC TABLE Guess any number from 1 to 63 Find that number in the columns from 1 to 6. I will tell you the number guess by you.
Column 1	Column 2	Column 3	Column 4	Column 5	Column 6
1	2	4	8	16	32
3	3	5	9	17	33
5	6	6	10	18	34
7	7	7	11	19	35
9	10	12	12	20	36
11	11	13	13	21	37
13	14	14	14	22	38
15	15	15	15	23	39
17	18	20	24	24	40
19	19	21	25	25	41
21	22	22	26	26	42
23	23	23	27	27	43
25	26	28	28	28	44
27	27	29	29	29	45
29	30	30	30	30	46
31	31	31	31	31	47
33	34	36	40	48	48
35	35	37	41	49	49
37	38	38	42	50	50
39	39	39	43	51	51
41	42	44	44	52	52
43	43	45	45	53	53
45	46	46	46	54	54
47	47	47	47	55	55
49	50	52	56	56	56
51	51	53	57	57	57
53	54	54	58	58	58
55	55	55	59	59	59
57	58	60	60	60	60
59	59	61	61	61	61
61	62	62	62	62	62
63	63	63	63	63	63

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