Thank you for looking! Numberblocks Mathlink Cubes 1-10 Math Activity Set New, unopened I purchased this but will not be using it, so I am selling it. Reference price: 4350 yen ☆Quoted below☆ The "Mathlink Cubes NumberBlocks 1-10 Activity Set" is a cube-shaped block activity set that allows children to learn while playing. It is a math learning material that can be used to learn basic math concepts and various math skills. For preschoolers, it can be used for basic number learning such as counting, comparing sizes, creating patterns, and classifying. For elementary school students, it can be used for basic calculations such as addition and subtraction, as well as multiplication, area, and volume. These math blocks can be used widely for a long time according to age and grade level. The 100 blocks have various shaped cutouts on each side, and all sides can be connected, so Let's foster creativity by building various things with these blocks!