The "Learn to Add and Subtract" kit, from Educa's Educational collection, is a game with 64 interlocking pieces designed to teach the first addition and subtraction operations to younger children in a self-correcting way. Each operation is composed of pieces that fit together, associating objects, numbers, and mathematical symbols until the correct result is reached, making mental calculation more visual and intuitive than a written exercise in a notebook. It is suitable for children aged 4-5 and up, and can be played individually or as a family, serving as a fun introduction to the concepts of addition and subtraction before formal learning in primary school. Available in Portuguese, it is a practical option for reinforcing basic math at home, complementing what the child begins to learn in kindergarten.