Question

Find the square of 54 using column method.Verify the result by finding the square using the usual multiplication.​

Answer 1

Answer:

2916

Step-by-step explanation:

Here

a = 5 , b = 4

Step 1 : Make 3 columns and write the value of a^2 , 2 × a × b and b^2 in these columns

Column I Column II Column III

a^ 2 × a × b b^2

25 40 16

Step 2 : Underline the unit digit ( in Column III ) and add its tens digit , if any , with 2 × a × b ( in column II )

Column I Column II Column III

a^2 2 × a × b b^2

25 40 + 1 16

41

Step 3 : Underline the digit in Column II and add the number formed by the tens and the other digits if any , with a^2 in Column I.

Column I Column II Column III

a^2 2 × a × b b^2

25 + 4 40 + 1 16

29 41

Step 5 : Write the underline digits at the bottom

of each column to obtain the square of the given number.

In thisvcase , we have :

54^2 = 2916

Using Multication :

54 × 54 = 2916

Hope it helps you.

Answer 2

Answer:

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