Abacus:
How to use it: https://www.wikihow.com/Use-an-Abacus
Abacus simulator:
http://www.alcula.com/suanpan.php
https://www.mathsisfun.com/numbers/abacus.html
http://www.alcula.com/suanpan.php
https://www.mathsisfun.com/numbers/abacus.html
Abacus, an interactive worksheet by kana2695
liveworksheets.com
liveworksheets.com
Chinese Multiplication Table:
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