What is the value of 105 ka whole square - 95 ka whole square without

1.	What is the value of 105 ka whole square - 95 ka whole square without finding
Answer» sorry answer is200x10=2000 Mr/Miss Tammayexcellent idea in question1.These shortcut methods are very useful in exam to save time2.This is simply a^2-b^2=(a+b)(a-b),no need to find square of 105 or 95here is the solution{tex}\\begin{array}{l}105^2-95^2\\\\=(105+95)(105-95)\\\\=100\\times10=1000\\\\\\\\\\\\\\\\\\\\\\end{array}{/tex}

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