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    how to work out square of 81

    0  Views: 324 Answers: 2 Posted: 10 years ago

    2 Answers

    Find the number that, when multiplied by itself, will equal a given number


    Like 2 times 2, will equal 4


    2 is therefore the square ROOT of 4


     

    9*9=81


    2*2=4


    3*3=9 and so on.



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