Mental math trick for multiplying by 5 #maths #mentalmaths #numbers #fyp

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Should’ve mentioned that when multiplying an odd number you just take the decimal point away

BakedZiti
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But that’s crazy though I’ve been doing this trick my whole life learned it from my sister who figured it out herself. Her teacher told her it was incorrect but it worked so 🤷‍♂️ didn’t know anyone else did this

BakedZiti