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= Additional information =
= Additional information =
==Useful websites==
==Useful websites==
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you can play with perfect square numbers from 1 to 1000 & play games with numbers [http://www.miniwebtool.com/square-numbers-list/?to=1000 please click here]
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To estimate the square root of a number [http://www.mathopolis.com/games/estimate-sqroot.php click here]
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To play quiz on square root of a number [http://www.thegreatmartinicompany.com/negativenumbers/square-root-quiz.html click here]
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==Reference Books==
==Reference Books==