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【名师讲解】小学一年级数字下册：第二单元(十几减9[第1课时])
【名师讲解】小学一年级数字下册：第二单元(十几减9[第1课时])
【名师讲解】小学一年级数学（下册）4/18
![【名师讲解】小学一年级数字下册：第一单元(拼一拼[第1课时])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/3916c5bf2be6432daf685792f38f5b4f~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=ugKdFkjdEecxP3julwoq4pdS3SU%3D)
App09:36![【名师讲解】小学一年级数字下册：第一单元(拼一拼[第2课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/8293985ecc5946e883481e258aab32d3~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=A%2FnCRhBxAUvFS%2F8JZewE89LjxBQ%3D)
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App11:54![【名师讲解】小学一年级数字下册：第二单元(十几减9[第1课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/708f2dfb8d404ae49c4c470a23a2af8c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=BLEwBUT8lVhnMG2qaJuNDe4yMr8%3D)
App11:28![【名师讲解】小学一年级数字下册：第二单元(十几减9[第2课时])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/23342d82c23247a5aac79ad3c9fda028~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=lE1u7qZFdPaLLPDRWa6IeuUdOLI%3D)
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App18:44![小学一年级数字下册：第二单元(十几减5、4、3、2[第1课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/2cf907d09765406080d8e9d0363842cb~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=tvGiYhD0m8oY9FoICjb0Vv1L8EQ%3D)
App11:11![小学一年级数字下册：第二单元(十几减5、4、3、2[第2课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/b3f33a8b29a24dbbad38d05d6d2a11c6~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=E43IcyWWm9xjysX5WU9qkqaHvR8%3D)
App13:37![【名师讲解】小学一年级数字下册：第二单元(解决问题[多余信息])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/6737ed8ef67949aaa00ba83b62c3396b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=RcwVmqQSl69alIfnTqfEP%2BBPl70%3D)
App13:07![【名师讲解】小学一年级数字下册：第二单元(解决问题[相差])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/cd99cb5afecc485dbb418701a1e38bc9~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=K%2FbsmRLVVoRjuU%2BTTTgYNu2wT4Y%3D)
App14:35![【名师讲解】小学一年级数字下册：第二单元(解决问题[巩固练习])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/a19f98e38b484676a25d7c4194aa5940~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=Limv%2BYFTTJY3KSKx4aUolNu1ygo%3D)
App10:11![【名师】小学一年级数字下册：第二单元(整理和复习[第1课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/8fa5cd15dc6241c5b30ad6dcfc116d38~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=DAXBlkB2JGZAM1FCe9dZe7M4UP0%3D)
App16:16![【名师】小学一年级数字下册：第二单元(整理和复习[第2课时])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/a577015fd4da40e28037d9bf7919c0f5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=1dq6lUf49OeiSa3AVv6aplGPbHc%3D)
App11:22![【名师】小学一年级数字下册：第二单元(整理和复习[第3课时])](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/7ae0b229a1764ce4b490709bd5b1cc92~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=URRC35Jp23N0TzEz8AsQeIsmO10%3D)
App10:28![【名师】小学一年级数字下册：第三单元(分类与整理[第1课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/00a7efc8f71643fdb460e04f3c4a00d4~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=DdDLAIZ8NByD17GjBqH2Ag20bF4%3D)
App09:38![【名师】小学一年级数字下册：第三单元(分类与整理[第2课时])](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/2f48573ba97646b8a2ebabe1a34eeff3~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250313073851CF9232A035D58A4C8D9C&requestFrom=704&version_code=80402&x-expires=1773358731&x-signature=I03%2BIaimG%2FVDsRebaQ5sjbE5omE%3D)
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