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

Methods similar to this go back thousands of years, at least to the ancient Sumerians and Egyptians. Around 1956, the famous Soviet mathematician Andrey Kolmogorov conjectured that this is the best ...

This article reveals a simple and effective shortcut for multiplying numbers that end in 5. Perfect for students, it breaks down the trick for both single-digit and double-digit numbers ending in 5, ...

Do you frequently feel that multiplication is difficult or time-consuming? Multiplication speed can significantly increase your confidence in arithmetic, whether you're doing problems in class or ...

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THIS AIN'T YOUR FATHER'S MATH: Here's a bit of low-tech edtech that might just relieve some of the anxiety around multiplying double and triple digit numbers. The Magical Maths blog reports that the ...

To multiply decimals by 10, 100, and 1000, use place value labels. Write the digits of the decimal using place value labels. Start with the first non-zero digit. To multiply by 10 move each digit one ...