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Unit Plan

Ck 12: Elem Math: Add, Subtract, and Multiply 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 demonstrate finding missing numbers using order of operations and working backwards. Operations include addition, subtraction, and multiplication.

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Concepts
order of operations, parentheses, working backwards
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Additional Tags
elementary math, ck-12, ck12
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Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Practice
  • This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information