加法减法口诀表 下载 mobi epub pdf 电子书 2025

内容简介

《加法减法口诀表》包含10以内加法、10以内减法、20以内进位加法，以及20以内退位减法，并添加了相应的记忆儿歌。适合幼儿或一年级学生使用。

我为什么喜欢在京东买东西，因为今天买明天就可以送到。我为什么每个商品的评价都一样，因为在京东买的东西太多太多了，导致积累了很多未评价的订单，所以我统一用段话作为评价内容。京东购物这么久，有买到很好的产品

比A4稍大一点 正反面 中间有折痕

凑单买的，孩子大班，正在学习加减法，正好可以用到。纸质不错，中间可以折叠，一面是十以内加减法，一面是二十以内加减法。还有一首凑十儿歌，孩子很快就记住了。感觉特别好用。

凑单买的，孩子大班，正在学习加减法，正好可以用到。纸质不错，中间可以折叠，一面是十以内加减法，一面是二十以内加减法。还有一首凑十儿歌，孩子很快就记住了。感觉特别好用。

凑单商品，价格便宜，有用处。

Thank you very much for the excellent service provided by Jingdong mall, and it is very good to do in warehouse management, logistics, distribution and so on. Delivery in a timely manner, distribution staff is also very enthusiastic, and sometimes inconvenient to receive the time, but also arranged for time to be delivered. At the same time in the mall management Jingdong customer service is also very good, to solve customer suffering, overcome all difficulties. Give us a very good shopping experience.

Thank you very much for the excellent service provided by Jingdong mall, and it is very good to do in warehouse management, logistics, distribution and so on. Delivery in a timely manner, distribution staff is also very enthusiastic, and sometimes inconvenient to receive the time, but also arranged for time to be delivered. At the same time in the mall management Jingdong customer service is also very good, to solve customer suffering, overcome all difficulties. Give us a very good shopping experience.

　　3.氨基酸通过特殊代谢可合成体内重要的含氮化合物,如神经递质、嘌呤、嘧啶、磷脂、卟啉、辅酶等.磷脂的合成需S-腺苷甲硫氨酸,氨基酸脱羧产生的胺类常有特殊作用,如5－羟色胺是神经递质,缺少则易发生抑郁、自杀；组胺与过敏反应有密切联系.

还以为是大8开可以贴在墙上呢。比16开大些，印刷还行，正反双面的