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Soroban or 9 bead abacus

ForfatterJames Monaghan
Emne:Addition, Aritmetik, Aritmetiske operationer
Soroban or 9 bead abacus.
Modified copy of Jerzy Mil's soroban.

Nye Materialer

  • Superellipse
  • Pathway to Proof: Triangle Angles
  • רישום חופשי
  • Area of a Circle Illustrated
  • Parallelogram Anatomy

Opdag Ressourcer

  • IMAGE D UN SEGMENT
  • Tangent-Chord Relationship
  • TR (KAY) - 3D Διάνυσμα
  • Point of Concurrency for Angle Bisectors - Demo
  • Poncelet Closure Theorem
  • Lagrange Multiplier

Udforsk emner

  • Cirkeldiagram
  • Trekanter
  • Division
  • Multiplikation
  • Sandsynlighed
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