Contents: 1. Numbers up to 100 2. Addition and Subtraction (1) 3. Shapes and Time 4. Addition and Subtraction (2) 5. Finding Patterns 6. Addition and Subtraction (3) 〈Structure and Features〉 ▶ Main Workbook 1. Understanding Textbook Concepts The key points of textbook concepts are explained in detail, with practice problems designed to help children fully understand each concept. Additional notes beside each problem help reinforce and review the concept while solving, and related concepts from earlier units or previous grades are connected to strengthen understanding. 2. Building a Strong Foundation Focused practice problems for each concept help build a solid foundation and prepare students to strengthen their skills. This section includes new problem types aligned with the latest curriculum trends, including new-style descriptive (written-response) questions, helping students build strong fundamentals. 3. Developing Applied Problem-Solving Skills True math skills are developed through applied problems that build problem-solving ability. Carefully selected advanced problem types are provided for each unit, allowing students to complete their mastery by repeatedly practicing similar advanced-level questions. 4. Unit Assessments To wrap up each unit, two rounds of assessments are provided, ranging from basic to applied levels. These include frequently tested question types from actual school exams, making this section ideal for preparing for regular assessments and school tests. ▶ Supplementary Practice Book - Includes guided writing practice to help students prepare step by step for descriptive (written-response) questions. - Provides a second round of unit assessment problems (Round 1 and Round 2) to review and reinforce learning once more.