Tag Archives: DOK 2: Skill / Concept

Circle Tangent to Line

Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to create a circle tangent to the line x+y=5. Source: Linnea Reyes-LaMon

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Area of an Obtuse Triangle

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a triangle with side lengths that give the corresponding area. Source: Owen Kaplinsky

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Logarithms

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create two different solutions to the problem: Source: Noel Chang

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Identical Quadratics 2

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box so that each quadratic is the same. Source: John Rowe

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Imaginary Solutions to a Quadratic Equation

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create a quadratic equation with an imaginary solution of the form ±𝒃𝒊 where 𝒃 is a whole number. Source: Bradley Springer

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