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Unit Plan

Ck 12: Elem Math: Adding and Subtracting With Parentheses Missing Number

Curated by ACT

[Free Registration/Login may be required to access all resource tools.] This is a video and practice problems finding the missing number of a multi-step addition and subtraction problem that has parentheses. The video models the process of working backwards to solve.

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Concepts
addition, order of operations, parentheses, subtraction, working backwards
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Additional Tags
elementary math, ck-12, ck12, missing number
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Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice