Sikandar Marwah23 reviews1 followerFollowFollowSeptember 9, 2025Did your math teacher teach you one way and no other to deal with a problem?Do you use still use a calculator to calculate?Then this book will unlock the right frontal lobe of your brain!It will teach you all the shortcuts your teacher never taught you!11 into 13 = ?0(13)00+1=11+3=43+0=3Hence, the answer is 143!143 reasons to purchase this marvelous book!