一年级数学上册电子课本部编（人教版）下载

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                                        3 1~5的认识和加减法

                                        4 认识图形（一）

                                        5 6~10的认识和加减法

                                        6 11~20各数的认识

                                        * 数字乐园

                                        7 认识钟表

                                        8 20以内的进位加法

                                        9 总复习


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