Maths isn’t so tough! Especially when you can practice on this wooden calculation board. The calculated equations must be matched with the proper solution on the wooden board so that they can be checked by a math pro.?This calculation board allows you to make equations with the numbers 1 through 20. It’s an optimal math exercise tool for children in primary school. The colorful number pieces motivate the young math whizzes. So who will be the first one to solve all their equations??