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???? I hate mental arithmetic - actually! But with this trick it's incredibly easy... ???? All my videos are free and will remain so. I really appreciate it when you honor the time, effort and love that goes into the videos and everything that goes with them and I'm always very happy to receive a thank you via Paypal: https://www.paypal.com/paypalme/mathe... You can also support my work on Patreon or as a channel member here on YT. https://www.youtube.com/magdaliebtmat... / manuandmagda In order to be able to realize the dream of owning my own sailboat and living a location-independent life, I work online as a private math teacher: www.magdaliebtmathe.com/angebote ***** For SEO: ***************************************** ???????? DID YOU KNOW THIS? Amazing math trick Multiplying large two-digit numbers in your head #mathtrick #mathematics #mental arithmetic