Curated Video
Divisibility tests for 5 and 10
Pupil outcome: I can identify and explain whether a number is or is not a multiple of a given integer. Key learning points: - For any multiple of 10 the place value of the ones column is zero. - For any multiple of 5 the place value of...
Curated Video
Divisibility tests for 4 and 8
Pupil outcome: I can identify and explain whether a number is or is not a multiple of a given integer. Key learning points: - A number is a multiple of 4 if and only if the last two digits are a multiple of 4. - Any multiple of 4 is also...
Curated Video
Divisibility tests for 6 and 9
Pupil outcome: I can identify and explain whether a number is or is not a multiple of a given integer. Key learning points: - A number is a multiple of 6 if and only if it also is a multiple of 2 and 3. - For any multiple of 9 the sum of...
Curated Video
Listing factors
Pupil outcome: I can state what a factor is and can identify factors of positive integers. Key learning points: - Divisibility tests can help identify factors of a number. - Using factors pairs it is possible to systematically find all...
Curated Video
Divisibility tests for 2 and 3
Pupil outcome: I can identify and explain whether a number is or is not a multiple of a given integer. Key learning points: - Any even number is a multiple of 2. - For any multiple of 3 the sum of its digits is also a multiple of 3.
Curated Video
Use knowledge of the divisibility rules for divisors of 2 and 4 to solve problems
Pupil outcome: I can solve problems using knowledge of the divisibility rules for 2 and 4 Key learning points: - If you can halve a number then it must be a multiple of 2 and divisible by 2 - If you can halve a number and halve again...
Curated Video
What are factors? | An introduction to finding factors
Dive into the exciting world of factors with Doodles and Digits! This video is your ultimate guide to understanding factors, why they're important, and how to find them using different strategies. What you'll learn: The clear definition...
Math Fortress
GRE Arithmetic: Integers (Part 3 of 4)
This video is a review of basic arithmetic for the purpose of solving problems on the quantitative reasoning section of the GRE revised General Test. This video covers the basics of integers. Topics covered include: Division, Division as...
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!
msvgo
Divisibility Rules 1
It explains divisibility rules including divisibility by 2, 3, 4, 5, 6, 8, 9, 10 and 11. It also provides examples to show the application of the divisibility rules.
Curated Video
Dividing Fractions by Dividing Across Numerators and Denominators
This video provides a lesson on dividing fractions by dividing across the numerators and denominators. The instructor explains the concept of divisibility and showcases examples of how to use the divide across strategy to solve division...
Professor Dave Explains
Divisibility, Prime Numbers, and Prime Factorization
Understanding prime numbers.
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
Determining Multiples of 2, 3, and 6 Using Divisibility Rules
In this video, the teacher explains how to determine if a whole number is a multiple of 2, 3, or 6 using divisibility rules. The teacher demonstrates how to apply the rules for each number and provides examples to illustrate the concept.
Khan Academy
Common Divisibility Examples, Factors and Multiples, Pre-Algebra
Equipped with several examples from the attached module and from standardized tests, Sal takes viewers through the process of prime factorization and divisibility. He demonstrates each skill several times with many different numbers,...
Scholastic
Study Jams! Divisibility Rules
Learning division is a challenge for many young mathematicians, but this presentation on divisibility rules can make it much easier. Seven different rules are clearly explained and modeled with the support of multiple examples. Consider...
Curated OER
How Do You Find All the Factors of a Number?
How do you find the factors of a given number? The teacher will show you how to use a table, test out your answers, and then write all your factors in a list. If you know the divisibility rules, that will also help you out.
Curated OER
What Does Divisibility Mean?
What do divisibility and factoring have to do with each other? Well, if a whole number is the divisor and a whole number is the answer then both those numbers are factors of the number being divided. But if the answer is a decimal number...
Curated OER
How Do You Find All the Factors of a Number?
How do you find the factors of a given number? The teacher will show you how to use a table, test out your answers, and then write all your factors in a list. If you know the divisibility rules, that will also help you out.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Recognizing Divisibility
This video explains how to test whether a number is divisible by a list of other numbers under 10. Practice problems are available. [6:26]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Common Divisibility Examples
This video shows how to determine the prime factorization of a number to determine divisibility. Practice problems are available. [8:13]