An Hour of Whispered Hitoshi Puzzles

This started as a 'slow hitoshi' video but after a while I just got into my rhythm and was pounding them out. Maths nerrrrrrd.
OK, I'm not sure about this but if you would like me to make a certain type of video which requires extra books or pens or what have you, I made this: www.paypal.me/thewhispercorner
Feel free to ignore it.