Fast Math Trick

TL;DR

Learn a math trick to quickly square numbers close to 100, with examples and explanations.

Transcript

good day welcome to the tech math Channel what we're going to be having a look at today is a little math trick and this little trick is about how to square numbers near 100 it pretty much works from numbers from about 90 up to 110 okay so it's it's it's only a very limited little trick but it's it's pretty cool nonetheless and this is it so how fas... Read More

Key Insights

• ❎ The math trick is a quick method for squaring numbers near 100.
• 🪜 The trick involves adding or subtracting the distance from 100 and squaring the distance.
• #️⃣ This trick can be applied to numbers between 90 and 110.
• ⌛ The trick simplifies complex calculations and saves time.
• #️⃣ Understanding the number's distance from 100 is crucial for using this trick.
• #️⃣ The trick can be used for both numbers above and below 100.
• ❎ The squared number is obtained by combining the calculations.

Questions & Answers

Q: How does the math trick work for squaring numbers near 100?

The trick involves realizing the number's distance from 100 and breaking it down into smaller calculations. Adding the distance to 100 and squaring the distance gives the squared number.

Q: Can you provide an example of using the trick for a number above 100?

For the number 107, which is 7 above 100, we add 7+7 to get 14. Then, we square 7 to get 49. Combining these results, we get 1149.

Q: What if the number is below 100?

For numbers below 100, we subtract the distance from 100. For example, for the number 98 (2 below 100), we get 96. Then, we square the distance (2*2), which gives us 4. The squared number is 964.

Q: Does the trick work for all numbers between 90 and 110?

Yes, the trick works for numbers within this range, allowing for quick calculation of squared numbers.

Summary & Key Takeaways

• This video teaches a math trick for squaring numbers near 100.

• The trick works for numbers between 90 and 110.

• By understanding the distance of the number from 100, you can quickly calculate the square.