TMO Mathematics

TMO Mathematics This page aims to provide learning about math and entertainment using math.

22/03/2024

LCM (three given numbers)

Sometimes, there are only two given numbers, but sometimes, there are three. The techniques for finding the LCM of two and three numbers have small differences, that are worth knowing.

YT video link
https://youtu.be/IKa2Binregc

22/03/2024

LCM (Ladder Method)

This is the best method of all methods. It is very effective for both small and big numbers.

YT video link
https://youtu.be/qMuPJHmUlSQ

15/03/2024

Least Common Multiple (LCM)

RELATED VIDEOS
1. Prime Factorization
https://youtu.be/O5O4ESbEMKQ
2. Divisibility Rules
Part 1: https://www.youtube.com/watch?v=pW9rIinP7-I
Part 2: https://www.youtube.com/watch?v=nXJmt99dU7E&t=46s
Part 3: https://www.youtube.com/watch?v=_pxF0ftMQDg&t=1s
Part 4: https://www.youtube.com/watch?v=-WJqCKHD4g4&t=25s
Part 5: https://www.youtube.com/watch?v=BRZmDGceCTA
3. Greatest Common Factor (GCF)
https://youtu.be/yE9-RdwKXF0

YT video link: https://youtu.be/VrxDbRCLxWA

14/03/2024

A faster way to find the GCF with the given choices

Short quiz link
https://docs.google.com/forms/d/1P65kDMri97iDU6dmFlxuK2OOcik06FbGvalzOzj1Qs0/viewform?edit_requested=true

RELATED VIDEOS
1. Greatest Common Factor (GCF)
Episode 1: https://youtu.be/yE9-RdwKXF0
Episode 2: https://youtu.be/WAd-nxGGyyQ
2. Parts of Equations Involving One Basic Operation
https://www.youtube.com/watch?v=zmAUfYdK3-Q&t=9s
3. Divisibility Rules
Part 1: https://www.youtube.com/watch?v=pW9rIinP7-I
Part 2: https://www.youtube.com/watch?v=nXJmt99dU7E&t=46s
Part 3: https://www.youtube.com/watch?v=_pxF0ftMQDg&t=1s
Part 4: https://www.youtube.com/watch?v=-WJqCKHD4g4&t=25s
Part 5: https://www.youtube.com/watch?v=BRZmDGceCTA

13/03/2024

GCF (Examples and Exercises)

This video includes even more examples of problems involving finding the GCF of two or more numbers.

RELATED VIDEOS
1. Greatest Common Factor (GCF)
https://youtu.be/yE9-RdwKXF0
2. Parts of Equations Involving One Basic Operation
https://www.youtube.com/watch?v=zmAUfYdK3-Q&t=9s
3. Divisibility Rules
Part 1
https://www.youtube.com/watch?v=pW9rIinP7-I
Part 2
https://www.youtube.com/watch?v=nXJmt99dU7E&t=46s
Part 3
https://www.youtube.com/watch?v=_pxF0ftMQDg&t=1s
Part 4
https://www.youtube.com/watch?v=-WJqCKHD4g4&t=25s
Part 5
https://www.youtube.com/watch?v=BRZmDGceCTA

YT video link
https://youtu.be/WAd-nxGGyyQ

YT channel link
https://www.youtube.com//videos

04/01/2024

MORE EXAMPLES AND EXERCISES ON PRIME FACTORIZATION

Short Quiz Link
https://docs.google.com/forms/d/e/1FAIpQLSdcU67QVj0RiM67Rj4FGi2wUsVtTNNOuRm7Q_4DFWlagfpMdQ/viewform

Related Videos
Prime and Composite Numbers
https://youtu.be/twhPvv4Wp_E
Prime Factorization
https://youtu.be/O5O4ESbEMKQ
Parts of Equations Involving One Basic Operation
https://www.youtube.com/watch?v=zmAUfYdK3-Q&t=9s
Divisibility Rules
* for 2, 5, and 10
https://www.youtube.com/watch?v=nXJmt99dU7E
* for 3, 6, and 9
https://www.youtube.com/watch?v=_pxF0ftMQDg
* for 4 and 8
https://youtu.be/-WJqCKHD4g4?si=ywAUxHVw4eDXuBoh
* for 7
https://youtu.be/BRZmDGceCTA?si=qCNV8GCLX7I2ndKg

YT Video Link
https://youtu.be/_lvFj1xQga8

YT Channel Link
https://www.youtube.com//videos

30/12/2023

PRIME FACTORIZATION

Suggested Videos
1. Parts of Equations Involving One Basic Operation
https://www.youtube.com/watch?v=zmAUfYdK3-Q&t=9s
2. Divisibility Rules
* for 2, 5, and 10
https://www.youtube.com/watch?v=nXJmt99dU7E
* for 3, 6, and 9
https://www.youtube.com/watch?v=_pxF0ftMQDg
* for 4 and 8
https://youtu.be/-WJqCKHD4g4?si=ywAUxHVw4eDXuBoh
* for 7
https://youtu.be/BRZmDGceCTA?si=qCNV8GCLX7I2ndKg
3. Prime and Composite Numbers
https://youtu.be/twhPvv4Wp_E

YT Video Link
https://youtu.be/O5O4ESbEMKQ

YT Channel Link
https://www.youtube.com//videos

29/12/2023

IS 1 PRIME OR COMPOSITE?

Short Quiz Link
https://docs.google.com/forms/d/e/1FAIpQLSdrXDx3t9lsNn2LYej2yulmfYsi2SJ60ntYs9I7Cp1A3Rr66g/viewform

RELATED VIDEOS

Divisibility Rules
* for 2, 5, and 10
https://www.youtube.com/watch?v=nXJmt99dU7E
* for 3, 6, and 9
https://www.youtube.com/watch?v=_pxF0ftMQDg
* for 4 and 8
https://youtu.be/-WJqCKHD4g4?si=ywAUxHVw4eDXuBoh
* for 7
https://youtu.be/BRZmDGceCTA?si=qCNV8GCLX7I2ndKg

YT Video Link
https://youtu.be/twhPvv4Wp_E

YT Channel Link
https://www.youtube.com/channel/UCnDJLhqefemdtHG8YOBcW-w

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