Short description: In Russian. Chekmarev, Yakov Fedorovich. Compendium of arithmetic problems. Moscow: Enlightenment, 1964. Please feel free to contact us for a detailed description of the copies available. SKU6376633
In Russian. Chekmarev, Yakov Fedorovich. Teaching 6-year-olds numeracy. Moscow: 1970. All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU6783300
In Russian. Chekmarev, Yakov Fedorovich. Methodology of Oral Calculation (with a set of exercises in oral numeracy). Moscow: Enlightenment, 1970. Metodika ustnykh vychisleniy (s naborom uprazhneniy po ustnomu schetu). In Russian /Methodology of Oral Calculation (with a set of oral numeracy exercises) . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7068345