Автор:Henry Lucia Kemp Год: 2012 Издание:Scholastic Страниц: [не указано] ISBN: 9780545320627 Instant, systematic, and engaging! These ready-to-use activity mats give young children the focused practice they need to really learn their numbers. Each double-sided mat targets a number from 1 to 30, an increment of 10 up to 100, or a key number...