ISBN: 9787544518581 - first grade second-beijing normal university textbook edition-oral arithmetic everyday (chinese edition) (1 resultados)

paperback. Condición: New. Paperback Pages Number: 84 Language: Chinese calculation is the core of the training of primary school mathematics. and mouth to be regarded as the basis for the calculation. Port operator compliance every day to practice (grade 1 Volume) (Beijing Normal University class standard edition) closely linked to teaching materials. refining which port operator knowledge content. throughout the estimate. mental arithmetic. speed count. simple calculation. targeted. cross-fusion. moderate amount of p.…