calculation of a square of a two-digit number
suppose we have to calculate the square of a given number.. First find the square of both the digit separately and write them as a four digit number.. Then multiply both the digit with each other and multiply the product with twenty Then add both the number.. We will get a number which is the square of a given number.. Example: find the square of a number 56 next step:2536 5*6=30*20=600 Now add both 2536 and 600 and the answer will be 3136.. Square of a given number 56 is 3136...