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I presented this advanced, modern multiplication notation at the 2019 Mensa Annual Gathering in Phoenix, and the 2021 Mensa World Gathering in Houston.
Here is a short YouTube video example showing everything you need to know to do Mighty Math.
Here we multiply 13 times 25 and get the answer 325 like this.
13
x 25
200
50
60
+ 15
325
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
Easier
Faster
More Accurate
Imprints Times-Tables
Fewer Carried Numbers
A Place for Every Step
Gives Approximations
Checks At A Glance