Learning multiplication tables

Jiujiu table, also known as Jiujiu song and Jiuyin song, is the basic calculation rule for multiplication, division, square root and other calculations in ancient Chinese calculations. It has been used to this day for more than 2,000 years. Junior elementary school students and some school-age children can recite it. The multiplication formula is the basic calculation rule for multiplication, division, square root and other calculations in ancient Chinese calculations. It has been used for more than 2,000 years. The multiplication formula in ancient times was from top to bottom, starting with "nine-nine-eight-one" and ending with "one, one, one, one", which is the opposite order to the one used today.
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Learning multiplication tables

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Jiujiu table, also known as Jiujiu song and Jiuyin song, is the basic calculation rule for multiplication, division, square root and other calculations in ancient Chinese calculations. It has been used to this day for more than 2,000 years. Junior elementary school students and some school-age children can recite it. The multiplication formula is the basic calculation rule for multiplication, division, square root and other calculations in ancient Chinese calculations. It has been used for more than 2,000 years. The multiplication formula in ancient times was from top to bottom, starting from "nine-nine-eighty-one" and ending with "一一如一", which is the opposite order to the one used today.