Features:_x000D_1 Large-particle building block design: more suitable for children to grasp and exercise, the development of fine hand movements, the building blocks are round and without burrs, and caring for the young and tender hands_x000D_2 Using hard paper material, different texture, ingenuity quality_x000D_3 360 degree round and no burrs, smooth corners design, caring for small hands_x000D_4 Equipped with 20 addition and subtraction reference tables, children can calculate the answer according to the questions on the reference table The answer is spelled out on the bottom board and 10 reference cards for building are also equipped, which can be assembled according to the reference cards _x000D_5 Wonderful spelling and gameplay, variety of numbers The number can be spelled from 0 to 99 on the bottom plate, which exercises children39;s thinking logic challenges and hand-eye coordination skills _x000D_ _x000D_Notice:_x000D_Actual color may be slightly different from the image due to different monitor and light effect_x000D_Please allow 1-3cm deviation due to manual measurement_x000D_Description:_x000D_Suitable age: over 36 months_x000D_Product weight: 0 96_x000D_Main material: high quality wood_x000D_Product size: 28 2*24*3 5cmPackage List:_x000D_1 set x Math Learning Board Toy