What is a day? - Training Enrollment Network

What is a day?

I want to ask where "what is a day" comes from? A book in Jin Xiong's math picture book.

Jinxiong Mathematics Picture Book is a brand-new set of mathematics enlightenment books published by Jinxiong Publishing House, a Korean listed company, in 20 19.

My house is eight floors upstairs and three floors downstairs. How many floors are there?

What books should science students in Wuhan, Hubei Province learn in Chinese, mathematics, English, physics, chemistry and biology? What is the order of each book?

Growth mathematics book

What's your major in junior college primary education?

How to make students learn to sum up math problems, draw inferences from others, and master them?

Mathematical modeling of production planning problem

How to explain absolute value and reciprocal with number axis?

Which is more profound, mathematics or biology?

How to design effective mathematics teaching in primary schools?

Mathematical application problems in the second volume of the first grade of primary school (two articles)