To divide numbers ending in zero by numbers ending in zero, remove the same number
To multiply numbers ending in zero, first, exclude the zeros from the numbers. Then, multiply
To double a large number easily, break the number down with each digit representing its
To divide an even number by 4, reduce the number to half twice. Remember, this
To divide a number by 5, first, double the number. The resultant number has to
To multiply a number ending in 5 by an even number, double the number that
To multiply an even number by 25, reduce the number to half twice and add
To divide a number that ends in zeroes by another number that ends in zeroes,
To multiply two large two-digit numbers, we subtract them from 100 to make the mathematical
Two large numbers, one of which is even, can be multiplied easily using this method.



















