Easy Percentage Trick you were Never Taught at School!

Описание к видео Easy Percentage Trick you were Never Taught at School!

This percentage trick is so easy - but you probably don't know it...because, let's face it, you were not paying attention in school when the teacher told you!
That's OK - youtube and tecmath has your back - with this, the easiest percentage trick you were EVER taught in school!

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More percentage tricks:    • Percentage made easy - Five percentag...  

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