Grade 1 Mathematics Module 1, Topic J, Lesson 38

students reading

Objective: Look for and make use of repeated reasoning and structure using the addition chart to solve subtraction problems.

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Common Core Learning Standards

CCLS State Standard
1.OA.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use...
1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole...

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