Is mathematics legal in Li Dongze?

Legal.

1. According to the investigation of the enterprise in official website, Cai Huadong Ze Education Technology Co., Ltd. has the telecom business license, business license and other documents, and is a legal and compliant company.

2. Mathematics is a subject that studies concepts such as quantity, structure, change, space and information.

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Seven liters and eight math scores are 140. Children get about 120. Do you need a one-on-one tutorial class?

Kangaroo, how do you spell the puzzle on page 1 1 in my math class?

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The title of middle school one is a physical education major, so it is necessary to change the title of middle school one to a higher mathematics major.

Give examples to illustrate what "mathematization" is, and do math.