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Handout

Purplemath: How Can 0.9999 = 1?

Curated by ACT

This resource discusses the relationship between '0.999' and '1' and provides various proofs of their equality.

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CCSS: Designed
Concepts
geometric series, decimals, irrational numbers
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Additional Tags
repeating decimal, 0.99999, argument from algebra, argument from philosophy, argument from semantics, purplemath, purplemath: how can 0.999 = 1?, fractions as decimals
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Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional
Common Core
HSN-RN.B.3