How to Calculate Faster than a Calculator. Mental Maths-6 (50k Subscribers special)

First of All Thank you for 50,000 subscribers! this means a lot ! and also welcome to the 6th part of the mental maths series and now I will share tricks from the book of sakuntala devi so I hope you enjoy this video! Discord joining Link- A Game for mental maths- Desktop Web Version- Secrets to Mental Maths - Figuring the Joy of Numbers- My other Two Helpful Channels ✅✅✅- 🔴🔴PhysicsOgenius- 🔴🔴StudyOgenius- 🔴🔴🆕All Math Visualized E-book- Do Subscribe and Share! It really Helps me ! Work Mail- mathogeniusworkmail@ Wacom One tablet(I use to write with this on screen) Buy by clicking this link= screen recorder=ZD soft screen WE also have a big facebook group where people can discuss and study math together! Link to our facebook group - like us on our facebook page!= #mathOgenius