https://www.amazon.com/Logitica-Build-Reasoning-Using-Number-ebook/dp/B07QLJHB7V

Solving the Number-Box problem is an excellent way to develop reasoning in the early stages of life. Enjoy learning through the concepts of Logitica. Reasoning is the action of thinking in a logical way, which is the key to problem-solving by identifying the underlying logic in a problem. To improving reasoning, we will follow the three steps: Determine, Verify and Apply.
A Number-Box problem contains 3 boxes, each one has 2 cells. The first and second box contains the hint to find the missing number in the third box.
Try solving the problems and enjoy learning Logitica.