A few simple and easy tricks are listed. It might be useful when to do mind calculation.
Every multiplication has a twin to be remembered. For example 6 X 8 can be written as 8 X 6.
When we multiply by a specific number, the product we get would of the specific numbers only. So we enlist some of the examples when we multiply a number with as follows
Multiplying by             Tricks to remember
2                        we can add the number to itself (For example 2×6 = 6+6).
5                        The last digit of the product always will be 0 or 5. Always half of 10 X of the                           number. (For example 8 X 5 = 40, 8 X 10 = 80 i.e., half of 80 is 40).
6                        when you multiply 6 by an even number, then it will be same digit. (For                               example: 6 X 2 = 12, 6 X 4 =24, 6 X 6 = 36, 6 X 8 = 48, Here last digit is                               same as the number multiplied to 6.
9                        The last digit will be as 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,…. it                           goes on in descending order.
10 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Always ends with 0.
11                      Up to 9 X 11,  just repeat the digit.
12                      It is easily done as 10 X and plus 2 X
