Percentage Trick - Solve precentages mentally - percentages made easy with the cool math trick!

in #dtube • 6 years ago

Percentages can be done mentally both accurately and rapidly using this cool math trick. Become a genius in no time! To support free math by tecmath onPatreon (thankyou): https://www.patreon.com/tecmath

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6 years ago in #dtube by
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