1, content: 1.0 version mainly introduces the basic content, including basic mathematical concepts and problem-solving methods, while version 2.0 has expanded and deepened on these bases, covering more knowledge points and problem-solving skills, and paying more attention to the training and cultivation of mathematical thinking.

2. Design: The design of 1.0 version is relatively simple, mainly focusing on the presentation and explanation of content, while the version 2.0 pays more attention to layout design and typesetting, and adopts more vivid illustrations and typesetting methods, making the learning process more relaxed and interesting.