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Savita P Kulkarni


For practice 3 for lesson 35 about squaring from L to R –

2) 83^2= 6889

But I could not get the same answer using negative number.

83^2 =

D(8)= 64, D(83)= 48, D(3)=9,

=6 with a carry 4, then 48=40=88 which can also be written as 9bar2, then 9-20= -11? how do i proceed?

Thank you,


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