How to quickly calculate multiplication of bigger numbers, like 279 x 188?
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Here are a few tricks to multiply quickly without using the traditional method. These are useful for all competitive exams like UPSC,IAS,IES,IFS,CAT, RAILWAYS, BANK etc https://www.youtube.com/watch?v=TFw6sEkFr7c https://neostencil.com/ese-ies-exam/
Hello Abhishek Gupta, all you need to solve these type of questions is best books. Here i'm suggesting you some books which will help you to get improve in your quantitative aptitude section. Following are the best books to get command over quantitative aptitude: 1 Fast track objective Airthmetic by Rajesh Verma. 2 Quantitative Aptitude for All Competitive Examinations by Abhijit Guha 3 Magical Book on Quicker Maths Best of luck!!