Instructional Video

Khan Academy: Divisibility Tests: The Why of the 9 Divisibility Rule

Curated by ACT

Why you can test divisibility by 9 by just adding the digits.

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Concepts
divisibility rules
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Additional Tags
divisibility tests, khan academy
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Resource Details
Grade
5th - 8th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L