1 |
In addition by completing the whole method and splitting technique |
2 |
Concept of Doubling/Halving(2-3 digits number) e.g.: Multiplying by 2, 4, and 5 , 25 |
3 |
Subtraction of number from its base(All from 9 last from 10) |
4 |
Dhashamsaha(Dropping tens) addition rule(2 and 3 digits) |
5 |
Spark addition(Left to right) |
6 |
Multiplication of numbers nearest to base numbers 10(below 10 and above ) |
7 |
Multiplication of numbers nearest to base numbers 100(below 100 and above ) |
8 |
Squaring of numbers ending with ‘5’, and Squaring of numbers between 50 and 60 |
9 |
Multiplication of numbers with a series of 1’s(By 11 and 111) |
10 |
Multiplication of numbers with a series of 9’s (e.g. 45×99, 654×999…) |
11 |
Multiplication of Power of 5,25,125 |
12 |
Multiplication of number, whose last digit add to 10 and first digits are same and vice –versa (ex: 64×46, 91×29 ….) |
13 |
Moving Multiplier (2,3 Digit) |
14 |
Multiplication with a different bases (20, 30, 40,….), apart from 10, 100, 1000, …. |
15 |
Multiplication by 11,12, 13…….19 |
|
Criss-Cross System of Multiplication(Vertically crosswise sutras) |
16 |
Divisibility rule by 2, 3, 4, 5, 6, 7, 8, 9, 10, 11…. |
17 |
Special Method: Division by 5,25,125 |
18 |
Rapid Division and division by nearest to base numbers (Complementary method/Nikhilam method(Below base method)) |
19 |
Division by Paravartya Method (Above base method) |
20 |
Decimal Calculations |
21 |
Simplifying Fraction |
22 |
Square Root of Perfect Square(Advance) |
23 |
Cube, and cube roots(Advance) |
24 |
Percentage, and Basic concept of Ratio(Advance) |