Fast maths trick - multiply two numbers near 100 faster than a calculator using vedic math

TL;DR

Use a simple math trick to quickly multiply numbers near 100 without a calculator.

Transcript

good day welcome to the tech math Channel little challenge for you today a little bit of a math trick again working with numbers near 100 so how fast can you work out this answer here 102 * 105 okay ready set go okay hopefully you got the answer there if you got the answer of 1070 10710 you got the right answer there okay so how did I work that out... Read More

Key Insights

• 💨 This math trick is an efficient way to multiply numbers near 100 without using a calculator.
• 🧑‍🌾 By focusing on how far each number is from 100, you can quickly calculate the product.
• #️⃣ The trick works for numbers between 90 and 110, but may become more challenging for numbers outside this range.
• 🪜 This method can be used for both numbers above and below 100 by adding or subtracting the differences from 100.
• 🐎 It is important to practice mental math techniques to improve calculation speed and accuracy.
• #️⃣ There are other methods and shortcuts available for multiplying numbers, depending on the specific calculation and numbers involved.
• 🛟 Mental math skills are valuable in everyday life and can save time in various situations.

Questions & Answers

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

The trick involves adding the differences between each number and 100, adding that to 100, and multiplying the differences together. This method works for numbers between 90 and 110.

Q: Can this trick be used for numbers below 100?

Yes, for numbers below 100, you can determine the differences between each number and 100, subtract those differences from 100, and multiply the differences together to get the product.

Q: Is there a limit to the range of numbers this trick works for?

The trick works for numbers between 90 and 110. Beyond that range, the calculations may become more complex and difficult to use this trick efficiently.

Q: Are there other methods to quickly multiply numbers?

Yes, there are alternative methods like mental math techniques, multiplication shortcuts, and using known multiplication tables that can be faster for certain calculations.

Summary & Key Takeaways

• The math trick involves determining how far each number is from 100 and using that information to quickly calculate the product.

• To multiply numbers like 102 and 105, add the differences of each number from 100 (2 + 5 = 7), add that to 100 (107), and multiply the differences (2 * 5 = 10).

• This trick can also be applied to numbers below 100 by subtracting the differences from 100.