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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
6th grade (Eureka Math/EngageNY)
Module 3: Rational numbers
Topic A: Understanding positive and negative numbers on the number line
Negative symbol as opposite
Negative symbol as opposite
Sal explains more challenging opposites like -(-3).
License: CC BY-NC-SA by Khan Academy