Curated Video
Divisibility Rules for 6, 9 and 10
How can we test whether a whole is divisible by 6? By 9? 10? In this video, we will learn the rules to tell whether a whole number is divisible by 6, 9, or 10!
Curated Video
Interpreting and Understanding Prompts
In this video, the teacher explains how to interpret a long prompt by summarizing, restating, and inferring. They provide a step-by-step approach to understanding the prompt for an article about different professionals and what they have...
Curated Video
Determining Multiples of 4 and 7 Using Divisibility Rules
In this video, the teacher explains how to determine if a whole number is a multiple of 4 or 7 using divisibility rules. The teacher demonstrates the rule for divisibility by 4, which involves looking at the last two digits of the...
Curated Video
Developing Lifelike Characters through Description
In this video, the teacher explains the importance of using description to develop lifelike characters in writing. The teacher guides students through a practice activity where they circle words that describe a character in a picture....
Curated Video
Using the Divisible by 9 Rule
In this short math video we will answer a standardized math test question where we need to determine which number value is evenly divisible by 9. We will review the divisible by 9 rule and apply it to each of the answer choices. We will...
TLDR News
Britain's Secret Nuclear Plans (and Bunker): What Happens if the UK Gets Nuked? - TLDR News
Every country has them, but hopes to never need them; nuclear plans. So in this video we dive into what would happen if Britain was hit by a nuclear weapon, the response, the secret bunker and the secret documents.
Curated Video
The Complete Java Developer Course: From Beginner to Master - Project - Divisible by Three
This video is the second project of this section where the user is prompted to enter an integer and the program gives an output statement of whether that inputted integer is divisible by 3 or not. This clip is from the chapter "Control...
Curated Video
SIMPLE Divisibility By 11 Test - The Alternating Sum Of Digits
Is a number divisible by 11? Learn the trick in this video and you'll look like a genius. Check out the related video on how to multiply by 11: https://www.youtube.com/watch?v=VT76IaPudsI Proof of why this works:...
Curated Video
Finding Numbers Using the Divisibility Rules
This video shows the process for solving the problem presented in SATs 2022 Paper 2 Q17, which involves finding numbers using the divisibility rules. The video will guide students through the process of understanding the concept of...
3Blue1Brown
Science YouTubers attempting a graph theory puzzle
A classic puzzle in graph theory, the "Utilities problem", a description of why it is unsolvable on a plane, and how it becomes solvable on surfaces with a different topology.
3Blue1Brown
Olympiad level counting: How many subsets of {1,…,2000} have a sum divisible by 5?
Timestamps 0:00 - Puzzle statement and motivation 4:31 - Simpler example 6:51 - The generating function 11:52 - Evaluation tricks 17:24 - Roots of unity 26:31 - Recap and final trick 30:13 - Takeaways
Curated Video
GENIUS Test Divisibility By 7 - Graph Visualization
This graph will tell you if a number is divisible by 7. Start at the circle YES. Move a number of black arrows equal to the first (leftmost) digit of the number. Then move one green arrow to get to the next digit. Repeat this for each...
Kids Academy
Rules of Divisibility for Kids | Learn like Nastya
It's Kids Academy, and welcome back to our channel! Today we will learn rules of divisibility for kids. Still struggling with division? Can’t quite figure out your least common denominators? This list of divisibility strategies will...
Curated Video
Create and Compare Number Patterns
In this short math video we will create and compare number patterns to answer a standardized math test question. We will first identify the first number in each pattern and use the provided rule to continue the pattern. We will then...
Brian McLogan
Summary for simplifying an imaginary number to a higher power
👉 Learn the basics of converting between radicals and rational powers. When given a number raised to a rational power, we take the nth root of the number where n is the number in the denominator of the rational power, then we raise the...
Professor Dave Explains
Divisibility, Prime Numbers, and Prime Factorization
Understanding prime numbers.
Curated Video
Why is a Circle 360 Degrees, Why Not a Simpler Number, like 100?
A circle is 360 degrees But have you ever thought why is a circle not a simpler number, like 10 degrees or 100 degrees? As it turns out 360 is actually a very good number. From a purely mathematical standpoint, a number like 10 or 100...
Brian McLogan
What is the rule of 72 and where does it come from
What is the rule of 72 and where does it come from