孩子们还能跟上四年级的数学学习节奏吗，如果比较吃力可以在课后来学下这份：<span class="wp_keywordlink_affiliate"><a title="View all posts in 学而思" href="https://www.xiaohuixx.com/share/ziliao_tag/xueersi" target="_blank" rel="noopener">学而思