Yes! Here are instructions for cleaning the game pieces included in Math Wizard and the Magical Workshop:
Rods and Cubes:
The rods and cubes can be hand washed with mild soap and water.
If you accidentally spill liquids or water on the mixing mat, towel dry it carefully, thoroughly and quickly to ensure no damage occurs. Pay special attention to the edges of the mat, which are more vulnerable to water damage.
Note that any kind of dry erase, wet erase, or other markers will permanently stain and ruin the mat.