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Mental Strategies for Addition and Subtraction
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Mental Strategies for Addition and Subtraction

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Grade Level Grades K-2
Resource Type Lesson Plan
Standards Alignment
Common Core State Standards
License

About This Lesson

This resource is part of a 3 lesson module. Topic B lesson 3-5. This resource includes the overview, lesson plans and activities. The resource is from EngageNY and licensed through Creative Commons. http://creativecommons.org/licenses/by-nc-sa/3.0/us. Aligned with 2.OA.1, 2.OA.2

Resources

Files

G2-M1-B-Lesson_3.docx

Lesson Plan
February 13, 2020
1.95 MB

G2-M1-B-Lesson_4.docx

Lesson Plan
February 13, 2020
1.87 MB

G2-M1-B-Lesson_5.docx

Lesson Plan
February 13, 2020
2.05 MB

G2-M1-B-Topic_Overview.docx

February 13, 2020
248.09 KB
External resources

Standards

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

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