Question

find the square of column method 45

Answer 1

45
×45
____
225
180×
____
2025

Answer 2

Step-by-step explanation:

Column Method:-

Steps to find out the square of a number using column method:-

Step 1: Make three columns and write the value of a²,2×a×b,b² respectively.

Step 2: Underline the units digit of b² (in column III) and add it's tens digit, if any, to 2×a×b (in column II).

Step 3: Underline the units digit in column II and add the number formed by tens and other digit, if any, to a² in column I.

Step 4: Underline the number in column I

Step 5: Write the underlined digits at the bottom of each column to obtain the square of the given number.

Refer to the image for the solution...........