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Instructional Video
Khan Academy: Missing Numbers in Addition and Subtraction Instructional Video
Khan Academy

Khan Academy: Missing Numbers in Addition and Subtraction

2nd Standards
Demonstrates how to find missing numbers in addition and subtraction equations within 100. [5:44]
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Instructional Video
Khan Academy: Missing Numbers in Addition and Subtraction Instructional Video
Khan Academy

Khan Academy: Missing Numbers in Addition and Subtraction

2nd - 3rd
Watch as Sal solves missing numbers in problems like 73 = ___ + 57. [5:43]
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