https://xn--4-ptb4ab.xn--p1ai/ ru https://xn--4-ptb4ab.xn--p1ai/news/slozhenie-i-vychitanie <span property="schema:name">Сложение и вычитание</span> <span rel="schema:author"><span lang="" about="/user/1" typeof="schema:Person" property="schema:name" datatype="">u0589156</span></span> <span property="schema:dateCreated" content="2019-11-14T16:32:55+00:00">чт, 11/14/2019 - 21:32</span> Thu, 14 Nov 2019 16:32:55 +0000 u0589156 73 at https://xn--4-ptb4ab.xn--p1ai