Birdwatch Note Rating
2023-08-10 13:31:30 UTC - HELPFUL
Rated by Participant: 1ECC8102F51DC22A50E5C77F2B5BA947420C7400801108031CD194617A369A39
Participant Details
Original Note:
This method is an Indian multiplication technique, not a Japanese one. https://instavm.org/wp-content/uploads/2021/05/H1.pdf Japanese people don't do this. (some Japanese bloggers only posted the information to introduce the Indian method.) Japanese memorise multiplication tables comprising 9x9 at elementary schools. https://ja.wikipedia.org/wiki/%E4%B9%9D%E4%B9%9D
All Note Details