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.
The trade worksheet helps put you in control of your trading. Calculating your profits and losses ahead of time lets you know if the risk you are taking is a risk worth taking. This is how you gain control of your trading. You become prescient on whether the opportunity you are taking is a good one or not. This puts you ahead of the majority of traders who simply fly by the seat of their pants.
Another strategy involves allowing your child to spend some time on a computer playing math games. The computer can be a wonderful resource that supports math and other subject area skills. Software is available that will measure a child's math skill level.
There are both similarities and differences between the new computerized programs and the former method of writing in math workbooks, tearing out the pages and turning them in.