Fast Math Trick - How to multiply numbers under twenty faster than a calculator!

TL;DR

Learn how to quickly multiply numbers that are beyond standard times tables using simple tricks.

Transcript

good day and welcome to the tech math channel uh today we're going to have a look at a special little trick in maths and this is how to multiply uh two numbers together really really quickly numbers that are a little bit beyond your standard times tables questions the numbers that start to get into the teens things like 13 * 15 and 11 * 19 and and ... Read More

Key Insights

• ⌛ Multiplying numbers beyond standard times tables can be done quickly and easily using simple tricks.
• #️⃣ The key is to determine how far each number is from 10 and add them together to find the 10s place.
• 🥇 The units place is found by multiplying the numbers together.
• 💨 With practice, these tricks can be performed mentally, making multiplication calculations much faster.
• 🪡 Using these tricks eliminates the need for a calculator and showcases your mathematical skills.
• 💦 These tricks work for any multiplication problem where the numbers go beyond the standard times tables.
• 👀 Learning and mastering these tricks can save time and make you look smart in math class.

Questions & Answers

Q: How can I quickly multiply numbers beyond standard times tables?

To quickly multiply such numbers, you need to determine how far each number is from 10, add them together to get the 10s place, and multiply the units place to get the final result.

Q: Are these tricks applicable to all types of multiplication?

Yes, these tricks work for any multiplication problem where the numbers go beyond the standard times tables.

Q: Can I use these tricks mentally without writing anything down?

Yes, with enough practice, you can perform these calculations mentally and impress others with your speed and accuracy.

Q: What is the advantage of using these tricks instead of a calculator?

Using these tricks eliminates the need for a calculator and allows you to solve multiplication problems faster than someone using a calculator.

Summary & Key Takeaways

• The video provides tricks to quickly multiply numbers that are beyond standard times tables.

• The traditional method of multiplication taught in school is time-consuming and not efficient for these types of calculations.

• By knowing how far each number is from the number 10, you can easily and quickly calculate the product of two numbers.