Products
Features
YouTube Video Summarizer
Summarize YouTube videos
Web & PDF Highlighter
Highlight web pages & PDFs
Chat with PDF
Ask any PDF questions with AI
Ask AI Clone
Chat with your highlights & memories
Audio Transcriber
Transcribe audio files to text
Glasp Reader
Read and highlight articles
Kindle Highlight Export
Export your Kindle highlights
Idea Hatch
Hatch ideas from your highlights
Integrations
Obsidian Plugin
Notion Integration
Pocket Integration
Instapaper Integration
Medium Integration
Readwise Integration
Snipd Integration
Hypothesis Integration
Apps & Extensions
Chrome Extension
Safari Extension
Edge Add-ons
Firefox Add-ons
iOS App
Android App
Discover
Discover
Ideas
Discover new ideas and insights
Articles
Curated articles and insights
Books
Book recommendations by great minds
Posts
Essays and notes from readers
Quotes
Inspiring quotes collection
Videos
Curated videos and summaries
Explore Glasp
Glasp Newsletter
Weekly insights and updates
Glasp Talk
Interview series with great minds
Glasp Blog
Latest news and articles
Glasp Use Cases
Learn how others use Glasp
Build & Support
Glasp API
Access Glasp's API for developers
MCP Connector
Connect Glasp to Claude & ChatGPT
Community
Glasp Reddit Community
Students
Student discount and benefits
FAQs
Frequently Asked Questions
AboutPricing
DashboardLog inSign up

Easy Percentage Trick you were Never Taught at School!

3.0M views
•
April 1, 2021
by
tecmath
YouTube video player
Easy Percentage Trick you were Never Taught at School!

TL;DR

Learn a simple trick to quickly solve percentage calculations by flipping the numbers and using the Commutative Law.

Transcript

good day can you solve this easy percentage question in 5 seconds or less 16% of 25 all right go so times up did you get the answer of four if you did congratulations if you didn't well I'll tell you what you know right now I'm going to show you how to work out this particular type of percentage question and it's really easy 16% of 25 not that nice... Read More

Key Insights

  • 🐬 Flipping the numbers in percentage calculations can simplify the calculation process.
  • 😒 The Commutative Law applies to percentages, allowing us to use a more convenient percentage to calculate.
  • 🐎 Practicing percentage calculations using the trick will improve your speed and accuracy.
  • 🛀 The trick can be extended to more complex percentage calculations, as shown with the example of 150% of 44.
  • 🍻 The video creator emphasizes the importance of supporting their channel and provides links for more math tricks.
  • 🧑‍🎓 The trick saves time and makes percentage calculations more accessible for students and anyone who needs to perform quick calculations.
  • 🎮 The video creator encourages viewers to subscribe, like the video, and leave comments, creating a sense of community engagement.

Install to Summarize YouTube Videos and Get Transcripts

Explore YouTube Video Summarizer or Get YouTube Transcript Extractor

Questions & Answers

Q: How can I quickly solve percentage calculations?

You can use the trick explained in the video by flipping the numbers and applying the Commutative Law. This method simplifies the calculation process.

Q: Why does flipping the numbers in percentage calculations work?

The Commutative Law states that the order of multiplication does not affect the result. This principle also applies to percentages. Flipping the numbers allows us to use a more manageable percentage.

Q: Can you provide an example of applying the trick?

Sure. Let's consider 48% of 50. Instead of this, we can calculate 50% of 48. Since 50% is half, the answer is 24.

Q: How can we use the trick to calculate 60% of 75?

We can flip it to 75% of 60. If we know that 3/4 is equal to 60, then 1/4 is 15. So, 3 multiplied by 15 is 45.

Summary & Key Takeaways

  • The video explains a quick method to solve percentage calculations by flipping the numbers and using the Commutative Law.

  • By flipping the numbers, you can easily calculate the percentage.

  • Examples of percentage calculations are provided for practice.


Read in Other Languages (beta)

English

Share This Summary 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Try YouTube Summary with ChatGPT & Claude or YouTube Transcript Generator

Explore More Summaries from tecmath 📚

Math - Basic Division thumbnail
Math - Basic Division
tecmath
Probability Tricks thumbnail
Probability Tricks
tecmath
Simultaneous Equations - the Elimination Method - How to solve - Math Lesson thumbnail
Simultaneous Equations - the Elimination Method - How to solve - Math Lesson
tecmath
Can you solve this tricky math problem? thumbnail
Can you solve this tricky math problem?
tecmath
Least Common Multiple LCM thumbnail
Least Common Multiple LCM
tecmath
How to easily multiply any number by twelve thumbnail
How to easily multiply any number by twelve
tecmath

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Try YouTube Summary with ChatGPT & Claude or YouTube Transcript Generator

Apps & Extensions

  • Chrome Extension
  • Safari Extension
  • Edge Add-ons
  • Firefox Add-ons
  • iOS App
  • Android App

Key Features

  • YouTube Video Summarizer
  • Web & PDF Summarizer
  • Web & PDF Highlighter
  • Chat with PDF
  • Ask AI Clone
  • Audio Transcriber
  • Glasp Reader
  • Kindle Highlight Export
  • Idea Hatch

Integrations

  • Obsidian Plugin
  • Notion Integration
  • Pocket Integration
  • Instapaper Integration
  • Medium Integration
  • Readwise Integration
  • Snipd Integration
  • Hypothesis Integration

More Features

  • APIs
  • MCP Connector
  • Blog & Post
  • Embed Links
  • Image Highlight
  • Personality Test
  • Quote Shots

Company

  • About us
  • Blog
  • Community
  • FAQs
  • Job Board
  • Newsletter
  • Pricing
Terms

•

Privacy

•

Guidelines

© 2026 Glasp Inc. All rights reserved.