104 - how to multiply by 6,7 or 8 on your fingers explained with PROOF
A trick to multiply by 6, 7 or 8 on your fingers explained with algebraic PROOF.
This makes it look a bit less impressive once you know the proof.
Watch video 104 - how to multiply by 6,7 or 8 on your fingers explained with PROOF online without registration, duration hours minute second in high quality. This video was added by user Crazy-Logic 19 March 2023, don't forget to share it with your friends and acquaintances, it has been viewed on our site 133 once and liked it 6 people.