Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Pub Date: 2015-01-01 Pages: 72 Language: Chinese Publisher: Zhejiang People's Fine Arts Publishing House. to understand the meaning of the subtraction is very important. If you do not understand the meaning of subtraction. subtraction calculation would even. can not be considered to understand subtraction. With respect to the calculation speed. so that children understand the use and significance of the occasion subtraction. that is more important when and where you should use subtraction. In. Seller Inventory # CR060997