Now that we've learned the basics of lightning fast mental addition, mental subtraction, and mental multiplication, it's time to turn our attention to a few tips that will help you take your skills to ...
Lynda Colgan receives funding from The Ministry of Education for the Province of Ontario and The Mathematics Knowledge Network (KNAER). Queen's University, Ontario provides funding as a founding ...
In this video I share the Chinese multiplication chants I learned when I was eight years old and can still recite perfectly in my thirties. I walk through examples like 2×2, 7×7, and 8×9 to show how ...
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