Stacking number blocks that make it easy to teach children how to add up to ten. Each block is sized according to its number, so for example a five is half as tall as a ten and when the child combines the blocks to make up the number they should be equal in height when the answer is correct. The blocks also contain the number as a spelling exercise and I have included small dots to help the child count using the dots as they learn. They can be sized to any size you want but just remember to scale them all at the same time. You can also edit the thickness using the scaling tool to amend the xtrusion and edit the text on the face, just select the text object and edit.