Question
Find the value of using the column method:
$(35)^2$

Answer

Given number $35=30+5$
Here,
$a =30$ and $b =5$
$a ^2$
$2ab$
$b^2$
$(30)^2=900$
$2 × 30 × 5 = 300$
$(5)^2=25$
$\therefore(35)^2=(900+300+25)=1225$

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