总复习重点。本册教学内容有20以内的退位减法；100以内数的读法和写法：100以内的加、减法；认识图形（一）；元、角、分的认识。同时结合计算安排了相应的应用题。由于图形和元、角、分的内容较简单，仅要求学生“认识”，所以总复习的重点应放在20以内的退位减、100以内加减 The total review focus. The contents of this book are less than 20 abatement subtraction; 100 within the number of reading and writing: add or subtract less than 100; understanding graphics (a); yuan, angle, points of understanding. At the same time with the calculation of the arrangement of the corresponding application questions. As the graphics and elements, angle, points of content is relatively simple, only requires students to “know”, so the total review should focus on the abatement minus 20 or less, less than 100 addition and subtraction