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Question

Using brackets solve 101×102.


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Solution

Simplification:

We have 101×102

We can also write the above expression as

101×102=(100+1)×(100+2)=100×100+100×2+1×100+1×2Sincea+b×c+d=a×c+a×d+b×c+b×d=10000+200+100+2=10302

Hence 101×102=10302


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