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How to Multiply by 9 Using your Fingers

I don't think i ever knew this... i always used the (ex. 9x3= the number below the # being multipled by 9 .. like 2 then the second number is whatever is added to get 9 ... answer 7)... hope that makes sense lol :)

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Cornicette a quadretti -

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Cornicette a quadretti -

Cornicette animali

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