Question

find the square of the following number without actual multiplication a) 55 b)209 c)96 d) 311​

Answer 1

Answer:

Step-by-step explanation:

column method

a)55

take a and b

now,a^2    2ab             b^2

        25       50              25

        30       2                 5

do the same and if they are 3 digits take the first two digit as a

Answer 2

Step-by-step explanation:

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