The previous page is sending you to http://50ds.ru/vospitatel/6608-poznavatelnoe-integrirovannoe-zanyatie-matematika--kultura-obshcheniya--okruzhayushchiy-mir-po-teme-schet-predmetov-troykami--sravnenie-chisel-pervogo-desyatka.html.

 If you do not want to visit that page, you can return to the previous page.