Teaching aids: 9 thousands,30 hundred places,30 30-bits,30 single digits,a set of 1-9000 cards,1-9000 small card 2 sets, 1 set of arithmetic symbol cards.5 wooden storage trays, 2 beads and 2 tablets The purpose of this product is to understand the relative values of 1,10, 100 and a 1000. The child learns the names 100 and 1000 in association with the quantities. Material: Beech + ABS plastic Suitable age: 2 years old or older, weight: 4.5kg Size: see Figure 6, 7 Paint: Children's environmentally friendly paint Packaging cartons For children, the most important thing to learn mathematics is to lay the foundation and help them establish the concept of quantity and number. Decimal bank games, the combination of beads and digital cards let them know the correspondence between quantity and number, in learning addition, subtraction, multiplication and division. Continue to perceive the correspondence between numbers and numbers, experience the fun of mathematics learning, Develop a focus on work and careful habits