Fractions, Decimals and Percentage

Number	Fractional Value	Decimal Value	Percentage
With 2	1/2	0.5	50%
With 3	1/3 2/3	0.3333 0.6666	33.33% 66.66%
With 4	1/4 2/4 3/4	0.25 0.5 0.75	25 50% 75%
With 5	1/5 2/5 3/5 4/5	0.2 0.4 0.6 0.8	20% 40% 60% 80%
With 6	1/6 2/6 3/6 4/6 5/6	0.1666 0.3333 0.5 0.6666 0.8333	16.66% 33.33% 50% 66.66% 83.33%
With 7	1/7 2/7 3/7 4/7 5/7 6/7	0.142857 0.285714 0.428571 0.571428 0.714285 0.857142	14.28% 28.57% 42.85% 57.14% 71.42% 85.71%
With 8	1/8 2/8 3/8 4/8 5/8 6/8 7/8	0.125 0.25 0.375 0.50 0.625 0.75 0.875	12.5% 25% 37.5% 50% 62.5% 75% 87.5%
With 9	1/9 2/9 3/9 4/9 5/9 6/9 7/9 8/9	0.1111 0.2222 0.3333 0.4444 0.5555 0.6666 0.7777 0.8888	11.11% 22.22% 33.33% 44.44% 55.55% 66.66% 77.77% 88.88%

 

Multiplication of numbesr with a series of similar digits in multiplier

Criss-Cross System of Multiplication for 2 Digit numbers

Finding Amount in one's Pocket (Funny Maths)

1. Ask the audience to consider amount in his pocket. (Only Rupees not paisa)
2. Add 5 to it.
3. Multiply the answer by 5
4. Double the answer
5. Ask the audience to add any one favorite  number between 0 to 9.
6. Finally Add 10 to answer.

Example:
1. Ask the audience to consider amount in his pocket. (Only Rupees not paisa) (100)
2. Add 5 to it. (100+5=105)
3. Multiply the answer by 5 (105 * 5 = 525)
4. Double the answer (525 *2=1050)
5. Ask the audience to add any one favorite  number between 0 to 9. (1050+1=1051)
6. Finally Add 10 to answer. (1061)

Solution:
Discard the unit digit. (in above example from 1061 discard 1)
From the remaining digit subtract 6. (106-6=100...That's Answer)

Subtraction using the rule ‘All from 9 and last from 10’ (used for power of 10)

Multiplication of a number by Series of 1 in multiplier

Multiplication of Numbers With a Series of 1

Finding Month & Day of Date of Birth of a Person (Funny Maths)

Procedure:
1. Consider the month number of the date of birth (1 for January, 2 for February, 3 for March 4 for April,..)
2. Double it.
3. Add 5 to answer.
4.  Multiply the answer by 5.
5. Multiply  the answer by 10.

6. Add day if the date of birth to answer.
7. Tell the final answer to the speaker.

Example:
1. Consider the month number of the date of birth (9 for September)
2. Double it. (9*2=18)
3. Add 5 to answer. (18+5=23)
4.  Multiply the answer by 5. (23*5=115)
5. Multiply  the answer by 10. (115*10=1150)
6. Add day if the date of birth to answer. (25 as day of date of birth-1150+25=1175)
7. Tell the final answer to the speaker. (1175)

Solution:
 Divide Answer in to two parts. First part is unit and 10 place digit. Second part 100th or 1000th place ( if exist). In above example 11/75. 75-50=25, Corresponds to  Day of date of birth. 11-2= 9, Corresponds to  Month of date of birth. So September 25 is the Answer. This is true for all the cases. If first part is less than 50 speaker should reply  "You Made Mistake