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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
3rd grade (Eureka Math/EngageNY)
Module 2: Place value and problem solving with units of measure
Topic D: Two- and three-digit measurement addition using the standard algorithm
Intro to place value
Intro to place value
Sal introduces place value using a toy with beads (an abacus).
License: CC BY-NC-SA by Khan Academy