Specification：
Material: Thick colored paper
Size: 21.2*14.5*1cm
Color: As shown in the figure

Features:
1. Preschool and Primary School Connection Oral Calculus Problem Card, Kindergarten Preschool Addition and Subtraction within 10/20/50, First Grade Mathematics Workbook
2. The content is compact, the number of questions is large, and the knowledge points are comprehensive. It includes practicing arithmetic methods such as rounding, borrowing, adding and subtracting, mixed operations, and rounding, laying a solid foundation in arithmetic
3. Be able to cultivate children's quick reaction ability and fast calculation skills, enhance their mental flexibility, and stimulate their interest in learning mathematics

Note：
1.The products are shot by professional photography equipment and professional team, but the color difference with different displays and the color difference caused by shooting lights cannot be guaranteed, so the color difference problem is not a product quality problem.

Package Included:
1 * Practice book for mental arithmetic question cards