ISBN: 9787559399137 - full vertical mental arithmetic cards (addition and subtraction within 20. full color version)/special training for young children(chinese edition) (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback.Pub Date:2023-11 Publisher:Heilongjiang Fine Arts Publishing House: This book is based on the mathematics curriculum standards. The content is aimed at connecting preschool children with the first grade of primary school. It designs a number of vertical mental arithmetic exercises on carry addition and borrow subtraction within 20. The questions are varied in form. which fully stimulates students' learning interest. Through practice. students can master more mental .…