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Learn Fast Calculation Tricks Part -1 (in Hindi)
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This is the very first lesson under this course and here, Dhiraj Singh Chauhan describes some tips which you should remember. Then he solves some sample complex questions and explains simple tricks to solve them fastly.​

Dhiraj Singh Chauhan
Income-tax Inspector, Cleared Assistant Commandant(SSB), From Saharanpur

Unacademy user
awesomeeeeee course. Highly recommend for UPSC every Aspirant.for veteran as well as begginer.
sir aapki khud ki practice achi Hai BT explain krne k tym thoda slow plz.. kyunki aap Jo bol rhe ho Wo aapke ilawa bht km bachon ko aise smaj aayega
sir teach us in English ,i can't understand hindi
sir (CGL English) k liye kis tutor ko follow kre
one of the best video on doing calculations easily, you are one of the best educator of unacademy...:) learning with you is absolutely worthy !! Thanks a tone for videos you have provided..
Sir could u tell me please age criteria of cgl 2017
  1. How to do fast calculation? Presented by Dhiraj Singh Chauhan

  2. About me B.Sc. (Hons.) from BHU Varanasi . 24th rank in CGL-2015(tier 1+tier2) Score: tier 1-150 .tier 2- 347.25 total-497.25 out of 600 Course fee: CONTRIBUTE Follow me on Unacademy at: https:/lun .

  3. * Remmemher Tables ubto 20 (Ma* 30) . Cubes upto 13 tractiee MENTAL CALCULATIoNS 'n Fra Time Frex. Time

  4. . How to use tables 7 3800, 39\ 37'2

  5. 33 x 37 = 11 X3 x 37-11 X 111 2 21 16 1575-16 (IS+ 0.75)

  6. 17o5 126 158.76 25 12.24

  7. 48 51 + 97 23 347 + 55+175 Ot valum