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Demonstrations 1 - 20 of 270
Time Around the WorldWord SquaresSchool SubtractionFibonacci RabbitsSchool Multiplication
Time Around the World
Word Squares
School Subtraction
Fibonacci Rabbits
School Multiplication
School AdditionAddition and Subtraction on a Circular RulerNets of PolyhedraEquations with FractionsAddition and Subtraction of One-Decimal Numbers Using Rulers
School Addition
Addition and Subtraction on a Circular Ruler
Nets of Polyhedra
Equations with Fractions
Addition and Subtraction of One-Decimal Numbers Using Rulers
Division by Successive SubtractionMagic Zero HexagonsBad Fraction SimplificationHow Old Would You Be on Another Planet (or Pluto)?Tri: A Variant of Hex Played on a Sphere
Division by Successive Subtraction
Magic Zero Hexagons
Bad Fraction Simplification
How Old Would You Be on Another Planet (or Pluto)?
Tri: A Variant of Hex Played on a Sphere
Percentages are ReversibleMagic Squares and DesignsTesting Reading ComprehensionAn Octopus under WaterSquare with Lines and Points
Percentages are Reversible
Magic Squares and Designs
Testing Reading Comprehension
An Octopus under Water
Square with Lines and Points

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