Get in the Kitchen! I was very hesitant for a while with my son when it came to the kitchen. I worried about the GIANT mess that would be left when he was done "helping". You don't even have to take on the entire project with them! You can start small and let your child help with measuring certain ingredients. You can modify the difficulty of the 'lesson' by talking about the different kinds of measuring cups and seeing what other measurements can also add up to equal one cup, etc.
Another recommendation for parents is to not allow children to utilize calculators at an early age. Children need to first develop their brains to be able to do mathematical computations on their own. Constantly using calculators at a young age can stunt the mathematical growth of children. If children develop math skills by mentally thinking of the answer to simple problems, they will be better prepared for everyday life, such as grocery shopping, balancing a checkbook, to name a few.
The children also compete locally, state wide, and on the national level. The experience is invaluable. There are also other mathematical games and clubs that children can join that will help develop skills and are fun. Parents should contact their local school district or state level office of Gifted and Talented Programs for this information.
If you are not willing to do the math, do you really deserve the profits? When you are investing in such a highly leveraged investment, it's important that you understand the basics of the trade, the value of what you are putting into it, what you are getting out of it, and all of your potential loss scenarios.