In this video, I explain how to perform two-digit operations quickly using mental strategies. We'll cover **addition**, ...

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 ...

Multiplication facts typically describe the answers to multiplication sums up to 10x10. Sums up to 10x10 are called “facts” as it is expected they can be easily and quickly recalled. You may recall ...