Tips And Tricks

Multiplication of any 2 digit by 2 digit
Multiplication of 3 digit and 2 digit numbers
Multiplication of 3 digit and 3 digit numbers
Multiplication of 4 digit and 2 digit numbers
Multiplication of 4 digit and 3 digit numbers
Multiplication of 4 digit and 4 digit numbers
Multiplication of a number by 9
Multiplication of a number by 99
Multiplication of a number by 999
Multiplication by 11
Magic of number 1
Sum of unit digit is 10 and remaining digits are same
Sum of tens digit is 10 and remaining digits are same