" Squaring of a number ending in 05 " We have observed and learned the method of squaring of a number of a number ending in 5 in our previous post. What if the number ends with 05 Like 105 ,205, 705...?
Rule:- • Square the number other than 05. •Find the square of the first part of the given number. • Affix /Place the first part of the number after the square of number part. •Atlast affix 05^2 =025 at the end . Consider following examples. Example 1:- 205^2 205^2 = (2/05)^2 =2^2/2/025 =42025 Example 2:- 305^2 =3^2/3/025 =93025 Example 3:- 805^2 =8^2/8/025 =648025 Let's take a larger number this time. Example 4:- 1105^2 = = 11^2/11/025 =121/11/025 =1221025 ( Here 11 is greater 10, therefore, push it to next block). Example 5:- 1305^2 = = 13^2/13/025 =169/13/025 =1703025
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