Introduction: Japanese Multiplicator
This method, which we can find origins in the Maghreb back in the 13th century, is in reality, not Japanese. Still, it is a fantastic method to learn and experiment with multiplication in a simple and visual form.
This project takes it to another stage by explaining how to make a physical object to encourage the learning of multiplication. The format is also quite unusual as you can make multiplication up to 999 x 999.
Step 1: Dream About the Result
Step 2: Download the Instructions and Build the Multiplicator
Here are the instructions for the Japanese Multiplicator. We recommend to print it for a better experience.
Step 3: Watch the Video to See How It Works
Step 4: Enjoy Your Multiplicator

This is an entry in the
First Time Author Contest
8 Comments
5 weeks ago
Thanks. cool introduction to an alternate method. Is it possible to divide with that tool?
Reply 4 weeks ago
Thank you for asking this question, the multiplicator can unfortunately not divide.
6 weeks ago
This is very cool. Thanks for sharing.
Reply 4 weeks ago
Thank you very much!
5 weeks ago
If this wasn't for teachers for teaching i wouldn't feel compelled to write:
Teaching deliberate bogus attribution seems... unhelpful.
"Mahgreb Multiplicator" even alliterates. And teaches a meaningful bit of geography. With a segue to some history. What's not to like about that?
Reply 4 weeks ago
Thank you for the feedback! I hope you enjoyed the multiplicator anyway :)
4 weeks ago
You should consider entering this in the First Time Author Contest :)
Reply 4 weeks ago
Thank you for your kind words!