Here is my math notation system for multiplying rational numbers. It practically makes kids smarter by constantly reinforcing times-table numbers, and it has other great benefits as well:
Helps Memorize Tmes-Tables
Eliminates Carried Numbers
A Place for Every Step
Provides Approximations Quickly
Checks At A Glance
I presented this system at the Annual Gathering of Mensa in Phoenix in 2019.
All materials on this site are free and may be freely copied and distributed.
Video below (2-min).
Please feel free to share with family, friends, and colleagues.
Here is the extended generic form of the Mighty Math system. In this example, we multiply the fictional number ABC times 123
Here we multiply 12 times 34 and get the answer 408 in short order. Open up the pamphlette above to see the benefits
The method is detailed in two word documents above and one power point presentation for your edification.
Here is a sample of some examples using the Mighty Math Method.
These are the most important numbers you'll ever learn, the times-table 36. Remember these, and you'll be better off than if you hadn't.
Here is another way to look at the 36 to help you remember them. Download this image, print it out, and hang it up to help you remember
Here is a short YouTube video example showing everything you need to know to do Mighty Math.