ISBN: 9787531559061 - children rapid response training i count application problems: less than 50 number subtraction(chinese edition) (1 resultados)

paperback. Condición: New. Paperback. Pub Date :2013-01-01 Pages: 92 Language: Chinese Publisher: Liaoning Children's Publishing House Child Rapid Response Training I count application problems: less than 50 the number of subtraction is designed to develop students' speed calculation. A simple calculation of the ability to fully enhance the overall quality of students' math. Contents: discern write about understanding the singular 50 or less know 50 less than double the number two interesting exercise to compare the si.…